From Everglades to Hillsborough the roads are four lanes so no problem passing.

I didn't "clock" them, I judged the difference between the speed we were traveling and my top speed and then compared that to the distance in a straightaway. Not enough distance to complete a pass safely.

(probably about 20 on the straight, 17 in the corners, and even less approaching intersections)

Excruciating? Like in getting a root canal sans novacain? That bad? Really? Let's see, they were going fast enough you couldn't pass and they had sense enough to slow when going through winding areas. So moving at almost your top speed? And you suffered Excruciating pain. You may wish to avoid making that trip if it causes you such agony and torment. Surely you can find enjoyment closer to home and save all the drama and trauma?
Or, are you exaggerating, perhaps, just a little.

If you knew me you would have no need to ask that question.

Thank you for that piece of advice. Rest assured I will put it to appropriate use.

I don't travel that way often in a golf cart because I'm in Poinciana, so I'm not very familiar with the route. Correct me if I'm wrong but I'm estimating from my map app that the distance is around 7 miles.

At 20mph that would take 21 minutes, assuming you never slowed down for intersections, or curves, or pedestrians, or bicyclists. 21 minutes.

Assuming you got "stuck" behind someone who was going 20 for half that distance, and the other half of that distance was only going 15 mph, for curves, and approaching intersections, that would add a whopping 3.5 minutes to the trip.

And that assumes you never slowed down from 20 (the speed limit) for anything at all and that you followed this cart for the entire trip.

3.5 minutes.

Am I missing something here? This doesn't seem like it should be all that painful.

Consider this: If you get on I-75 to travel 10 miles, at 70 mph that's 8 min 34 sec. If you get stuck behind a clown (or group of clowns) going 55, that's 10 min 55 sec, a difference of 2 min, 21 sec. So, what's the big deal? Trust me, that 10 miles is "excruciating".

(As a regular user of 75 and the turnpike) “ If you get stuck behind a clown (or group of clowns) going 55,” Now that’s funny!

Well, I can see your point, but if you really are going to be only going 10 miles, it makes more sense to take a couple of breaths, do the analysis, and be safe, then to get upset, and try to weave around the clowns.

Also, I-75 has enough lanes that the clowns should not be blocking all of the lanes, or even more than the far right lane, however, on an MMP, the "clown" only has one lane, and should not be expected to drive over the speed limit in order to appease the impatient cart driver who wants to do 22 or 23 on the straights, and 20 on the curves where one may come up suddenly on a walker or a slow moving bicycle.

And it was the situation on the MMP that I was addressing.
So there is that.

So, here is this:

The "clowns" aren't the ones going 20, nor do they need to pull over for the cart going 23. The clowns are those that are going 12. The biggest clowns are those that go 12 but speed up to 23 when you go to (safely) pass them. Do that in a car and you can be cited under Florida law, but in a cart on the MMP it's simply rude (and dangerous)

Florida statute 316.083 sec 5.

(5) "Except when overtaking and passing on the right is permitted, the driver of an overtaken vehicle must give way to the right in favor of the overtaking vehicle, on audible signal or upon the visible blinking of the headlamps of the overtaking vehicle if such overtaking is being attempted at nighttime, and must not increase the speed of his or her vehicle until completely passed by the overtaking vehicle."

I-75 or MMP, what makes it "excruciating" is your mindset. Anxiety of not being first, in the lead, being held back. Relax! Back off and enjoy the ride. You will get there. No need to get upset. Don't let the trivial stress you out. You will enjoy your game more and play better if you are not tense from anger.

Once again, you've jumped the rails from what we were talking about (someone going 3 mph below the maximum) when approaching curves and intersections, and 20 on the straightaways, (the speed limit), to an exaggeration of what we were talking about.
Personally, I've yet to encounter the mythical creature who has jacked his governor to 3+mph so he can go 13mph, but I suppose he may be out there.

Actually, there doesn't appear to be any rail jumping at all. You brought up the extra time, GE gave an example using I-75, you mentioned multiple lanes and 23mph, GE answered both.

*IF* we are still discussing my post about slow cart drivers from Everglades to Hillsborough:
- I didn't mention 23mph, mentioned about 20mph (and that was a guess)
- I didn't mention blind corners, I mentioned straightaways, corners, and everywhere else
- There is no speed limit on the MMPs.
- Though speed is effectively limited by the maximum allowable cart speed, the max speed of an LSV (allowed on the paths) is 25mph
- Whether it is two minutes stuck behind a left lane louie or five minutes stuck behind one truck slooowly passing another or three and one half minutes added to an already 25 minute trip it is painful

Please note: I don't believe I ever said the slower cart was doing anything wrong. I simply said it was very painful (excruciating) to have to follow someone for nearly 30 minutes.

Note 2: Not that it really matters, but the same cart that I felt was slow on that 30 minute drive pulled away from me going down Hillsborough. The cart was capable of going faster on the MMP but the driver chose not to. His choice, no question, but just adds a bit of insult to injury.

We were examining the reactions we have following someone who is going slower than we might like, but still behaving quite reasonably, when GE switched the scenario to someone behaving quite unreasonably.
that is an example of a classic "straw man" argument: attempting to refute one argument with an argument different from the one under discussion.

I have also found myself growing impatient with slow traffic. However, sometimes upon reflection, I have to admit that the person in front of me is being quite reasonable, although a bit slower than I would go if I owned the road all to myself, and it's just time for me to take a chill and go with the flow.

Note 2 first. I have a gas cart limited to 20, but going down hills I have noticed I seem to be able to go a little faster. That may be what occurred going "down Hillsborough ".
Next is the expression of what is meerly frustration as "painful" or "excruciating". Pain is a physical manifestation of a physical condition. What you experienced is frustration, which is your emotions being unable to deal with a situation beyond your control and making you unhappy. Rather than throw a tantrum, like a spoiled child being told "no", change your mindset and accept that you have the right to enjoy the ride or hate the ride. Happy or mad is up to you, not the other person.

So you have never traveled on Hillsborough.

I could refute your erroneous conclusions, but Bill already did a good job of that.