Shorten limbs / weight gain

[perry f.]

I have a  mild r/d longbow that I made. It was one of my first, and there are a few things I'd like to re-do. The limb tip overlays are my first attempt (not pretty) and the draw weight is less than I wanted. I'm thinking about cutting an 1" off each end, to re-do overlays and gain draw weight. Anyone have any idea how much I could expect to gain?

[kennym]

6# on my D/R from 64" to 62"

[Robertfishes]

http://tradgang.com/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=125;t=006231

[John Scifres]

I assume 3# for each inch taken from the length.  There are many variables but that is at least in the ballpark.