In the past I've made some longbows (great northern critter gitter style) that were 62" long with an 18" riser and two lams of .050" glass and four lams of wood that tapered .0015" each for a total taper of .006". The lams all measured .085" at the butt end. My question is this; I always ended up around 50#@26" which was what I wanted, I want to make a 60" bow on the same form and reach the same weight, so do I shorten the riser and use thinner glass or what? I'm thinking of going with a 17" riser and .040" glass and seeing what I end up with. What do all of you think? Thanks, Rob.