Leech, my experience exactly, I hated the thing! I'm a Mister Twister Piranha guy, it's a little heavier duty than the green ones but never had trouble with the green ones either over the many years I've used them. I can use a filet knife on those rare occasions we do a shore lunch somewhere.
I think some people are obligated to keep what they catch. Me I'll keep fish but not very often at least in the winter. (Not on Mille lacs) Mille lacs you have the chance at catching a trophy sure maybe it would be cool to keep it but for a lot of us letting a trophy go is as good as keeping it at least IMHO.