Hi guys.

I was wondering, is there a difference in performance between 2 bows, one with tapered wood lams and the other with parallel wood lams. And if so, is it so significant?

Here's the thing- I don't have a thickness sander and the only option for me is to taper with a hand plane. So I thought, maybe it's better to just use parallel lams rather then have an uneven taper.

What do you guys think?

Parallel will work just fine. you can then taper your limb profile more to get rid of some mass weight.