Chad,
I have never tried a double taper if I understand what you mean. This would create a flat spot in the middle portion of the limb. Your fadeout area above the riser would take all the pressure. My longbows are a slight r/d (2" and 1"
and I don't like to use a lot of taper. I personally like .002"-.004" total taper in mine. I tried a reverse taper in one bow. What a nightmare! I like a full working limb. Too much emphasis on working the fadeout area causes too many problems. It did make a very fast bow though.
Any other opinions?
Dick