Apologies, missed this post earlier. Poe Lang do make and distribute a cocking crank, and I *think* that they have brought out an adapter for the Guillotine/Tormentor. http://www.bogensportwelt.de/X-BOW-Crankaroo-Kurbelspanner You can't see it in this picture, but there is a third screw hole at the back of the adapter that looks like it would be held in place by the butt pads top screw. Unfortunately, I have been unable to confirm so far whether this adapter is actually for the Guillotine, or just looks like it should fit (but wouldn't). Unfortunately, the one down side to Poe Lang is that they are virtually impossible to get hold of via email. I'll update if I find out for sure.