Years ago i used to work on my own compound bows, and built a bow press with a hand crank boat winch and cable. When i first got into building Trad bows i ruined some perfectly good bows with that bow press.
I suppose it would work ok if the contraption was longer, but the one i have was designed for 36" axle to axle compound bows with some adjustment for different rigs..... Putting too much pressure mid limb on these trad bows is a bad scene...... I even snapped a riser in half with that damn thing.
Btw.... i know where that contraption is, but never use it any more. I think the portable bow stringer with the dowels is in the loft somewhere. Kirk