[faithfulfrank]

Glad to be of help.
I'm not stating that what I posted is THE one and only answer....just one opinion among many.
Even though I am not a "Villager" I appreciate this forum and hope I can be a help.

When I bought my Florida home just south of you guys, I had an insulation company blow in more white fiberglass insulation. I had the sq. footage figured out well, along with how many bags it would take to get the R factor what I wanted it to be.

I wanted an R-50. They told me that was "Stupid Northern Thinking". I explained to them that the difference between the R-32 and the R-50 was only around $100, and that is what they agreed to and what I ordered when I called and made the deal. I told them I understood there was a law of diminishing return, but it was my money to "waste", and if they were there they would do it my way. They did it, and said they were done. I asked them to show me the empty bags. They were like 5 bags short. I told them they could;
A) Get paid for 5 bags less OR
B) Get back up there and install the amount I was paying for.

They blew more in. The extra $100 bucks was worth it for just bragging rights, and if electricity goes up down the road, I'll still have more then enough insulation. I'm sure now I have more attic insulation then anyone in The Plantation.

Sad you have to watch some folks. I'm sure no one else would have done the math.....

Frank