i'd try using some 330's in a run with a diving stick, seems to do the trick and its an easy set up. you skin beaver open and stretch them on a hoop stretcher or using a piece of plywood with some finishing nails. you can do a search on google for trapping instructions, i think the north dakota fur takers have a manual somwhere on the internet that is VERY informational. everything from sets, to skinning. just be sure to have a few VERY sharp knives or at least a good knife with a sharpener. when you skin them, its just easier to take your time and clean skin them, meaning, you try to get all the fat and muscle off as your skinning, rather than rough skinning them and then trying to flesh them later on. to me beaver and muskrat trapping are the most fun, but i usually don't start trapping beav's until late december through the ice and then i usually stop trapping and hunting them when the ice is off the lakes up here for a week or so. thats usually how i judge it. beaver aren't primed up yet and you won't get much for the pelt now. i think the price is going to be around 20 or 25 bucks skinned and stretched this year. its a lot of work for not much money but at least it pays for gas to have a good time and be outside. good luck to you.