I've noticed you wear different tennis shoes during racket playtests. I suppose all or part of it is reviewing tennis shoes as part of your job (tough job but somebody has to do it). But, what happens with all this shoes?: 1- You have a jumbo closet to store them as part of your inheritance . 2-You give them to charity. 3- Wear them during the playtest and then toss them anywhere. 4- You keep them and just show off at court during tournaments. Seriously what happens with all thes shoes? Why doesn't TW sell these demo shoes that playtesters dont want after they playtest them?