I go TTS, first 2 times I wore them for play I had some nasty hotspots on the lateral side of my feet right behind the little toe and the top of my foot. After that though, it was golden and the only problem I deal with is my foot slipping from too much traction and thin socks. If you go up a size you will slip like crazy if they don't fit well. Regarding the EM, mine hasn't stretched out and I've worn them at least 10 times for at least 30+ hours of basketball. It's a really flexible material so if anything like my pair it'll mold around your feet to fit better. Those first couple times with all the hotspots are probably due to the mesh just not broken in yet.