Trux I havn't shot it alot but the power lam really stiffens up the limb, I do have to shoot a stiffer arrow over the other 53# non PL bow I built 2 years ago. I have not shot these bows thru a chrono but cast seems good..I used to have a few Black Widows and cast is similar?? the Binghams chart shows that a .250 stack should come in arround 45 lbs, this one with 21 1/2" riser and the 29" PL came in at 54 lbs. other specs are .690 inch limb tip width and limb width taper starts at the end of fades 1.73" to 11/16" wide at string nock.