Just wandering whether heavily padded tennis shoe cause a knee pain? This sounds counter-intuitive, but I swear I cannot play in soft shoes. Judging by symptoms I have a case of ITBS, but it didn't bother me until I changed my NewBalance 804 to 1005. Some time ago had similar issue when running in soft NewBalance cross-trainers, but it seemed to stop when switched to light and stiff Adidas running shoe. Can it really be the shoe or is it just a coincidence?