Paco, If your draw length is 28" you could shorten both limbs so that your working limb to nock is 28". That would get the draw weight back up a bit. Looks like limbs are bending too much mid limb. On board bows I keep
the limbs exactly the same thickness from fade to tips. I'll start at about a half inch thick on a 6 ft bow with stiff handle. It will floor tiller right off. Then depending on draw length remove more belly evenly. The elliptical tiller will come from the tapered side profile. I use a power hand planer to get that even thickness on boards and fine tune the tiller with belt sander or scraper. Just a tiny change in thickness variation will give you hinges or wip tilled ends. cheers fiddler49