I've been using running shoes to play tennis for the past three years. All of them have been very comfortable with a mostly mesh exterior. My last pair being a set of asics. I decided to break down and buy some legit tennis shoes. I ended up buying the Babolat Propulse 2 for 70$. After reading some reviews I ordered a half size up. I usually wear an 11 but decided on the 11 1/2. First impression was they were very stiff, clunky and made my feet a bit tender. Just finished my 3rd session playing in these shoes and they have loosened up quite a bit. They seem to fit fine until I really start running for a ball like a drop shot or something than I feel like my foot is wriggling around a bit and it makes it much harder to stop. I have about a thumbs width of room between my big toe and the tip of my shoe. Possibly a sliver more. Is that too much room and therefore the shoe is the problem?But I've always been using underarmour socks for the past 1 1/2 years. The same exact pairs I bought then I am using now, never bought any more. Though I do have about 6 pairs. But I noticed the interior lining of the shoe is much slicker than the running shoes I've been using for years. And my socks are so old that the ankle part I have to stretch around the back of my heel to make it fit alright. So could it be that my socks are so loose and the interior is so slick that my socks are causing the uncomfortability? Really debating on whether or not to send the shoes back and order a half size smaller. Thoughts? Would it make sense that it would take a while to adapt to the feel of tennis shoes?