Bob, I would like to give you some feedback on the Clay Tech tennis surface at your indoor court. I have been playing tennis for over 40 years and played on every surface including grass, red clay, har tru, crush shell courts in Asia, carpets, tile courts and the most positive attribute playing on Clay Tech is there is less impact on your knees and feet which are exacerbated when playing on other surfaces. The points are longer and results in more of a work out. I normally play on hard surfaces twice a week and usually 3 sets of tennis. I need several days to recover before I can play without any pain in my joints. My tennis group plays 4 sets of tennis every Saturday on the Clay Tech and without a doubt I probably could play every day without pain if I played on the Clay Tech surface. I know this is not a factor for the younger crowd (pain, and joint problems) but once you reach middle age, playing on a hard surface will takes it toll eventually.