So, I was at this local shoe store that has a bunch of odds and ends, and I found a pair of these in my size. I tried them on, and they fit, but I didn't want to buy them until I got a little feedback on what you thought of when you first tried them on. They feel pretty stiff and heavy.....does that change pretty quickly? Would I be better off with a pair of Tiger Mexico '66s (even less heel, but might wear out real quick) or perhaps the retro Nike Waffle Trainer?