Don't use judo points on groundhogs. You'll only get an inch or two penetration, and the ground grizzly will take your arrow down his hole. I know by experience. Groundhogs are tough critters. I used old bear single blade heads, that you can resharpen and straighten out with a hammer if you hit a rock and bend the tip. I never hunted squirrel with em but I imagine they would shock them enough to put em down. By the way, I put the judo "roll on" behind the broadhead. I can't remember their name, but they worked good to stop your arrow so you can find it in case you mmmmiss.