here is what I have so far ,here in the house(I know none lighter than these.)
.360= 52# average
.350 = 47# average
I havent built any light bows off it yet,but my "guess" would be .010" = 5# so around .320" to .325"
There is room to trim and/or trap if heavy,and piking to 62" gains 6# on the 50ish weight bows if light.
Hope this helps!