I'm interested in a laser attachment that I can adjust to help me get the desired firewood lengths when bucking logs. I know of other methods...Mingo, chalk, use your bar, magnetic stick, etc... but a compact laser attachment that is small and can be quickly removed seems like a good idea. I've seen the Firewood Prosizer but it's a little bulky and expensive if you ask me. Wondering if anybody has seen a DIY version or perhaps a competing product out there?