On moulding profiles that are not rectangular, we glue and clamp chevrons, then after the glue is set but not fully cured, glue and clamp the chevrons together. On twisted mouldings (believe it or not, such does exist), I ask the boss-lady for help. I grasp and twist the moulding while she operates the clamp. (We use MasterClamps.) In my dotage, I've developed a trigger finger in my left thumb and I'd like to avoid the manual exertion. Has anyone out there in GrumbleLand found a strap wrench with a design that would limit the risk of denting the moulding?