Hi there, I find myself in the same boat. Up til now I have only used hand-punches, without good results on any stock, really. I have tried several different brands. I am considering investing in a Lassco CR-20 Cornerounder Corner Cutter, which I have seen for as low as $89 on ebay and other sites. Apparently you can purchase dies with different corner radiuses, which is cool. I’d love to know if anyone on here would vouch for its reliability or recommend a different one before purchasing?