I bought these for my mom after my dog finished off her last pair. I did have an adjustment period getting used to these, as others mention, they?re not sewn into the sole. It is unlikely that the difference between the HERO3 and the 3360 could be noticed. Thick black hair everywhere. Im a pretty solid size 9 and a 9 in the Karin works perfectly. I have the shoes at home and not used. I couldnt really justify buying another pair of shoes just to throw them in the trash again. Complex combinations and macro actions can be configured for any action, even tilting the mouse beyond a certain angle. Even just walking around my house for a few minutes, I could see my foot turning red and getting painful. I wore forver 6 hours at 2 different events the same night with no problems.