GM's MLTL with 416-8B

[GM]

GM, in looking at densities of the R-13 and the OC 703, there is a 2lb. difference (703=3 lbs/cu. ft., R13 =1.0 lbs./ft.).

Yeah, but the point is I already know what to expect with 703 and R-19, so looking to increase the knowledge base....................

GM