I am definitly an outlayer on this one, but for what its worth. I just use the standard 20" wide ccp from walmart. I cut the bottom off for a sit pad. I add the sit pad either under my butt or under my feet when I need to use the full pad. The pad is used with the JRB nest underquilt. The pad only comes in when temps drop into the low 20-30 deg range. With this I have not had any problems with cold shoulders. I also just throw the pad in the bottom of the hammock.
But I think I am different from most people here on this. I am also a warm sleeper.
Is that too much to ask? Girls with frikkin' lasers on their heads?
The hanger formly known as "hammock engineer".