They are nothing more than hickory laminations. Four of them in the working part of the limbs and one thin one on the bottom of the limb at the pads to add enough thickness to prevent flexing on the limb beds of the riser.
I used my three piece longbow form to lay them up.
I’ve strung this bow afew times and so far it’s holding the backset. Don’t know how well they will hold the set once I really start working on the limbs. They may hold and they may straighten out a bit.
Yea, it different…. But, I always like something different to what everyone else shoots.
Can’t ever tell, it may start a new trend.