I am looking for the ultimate ball that has the best feel for hitting, most durable felt for longevity and that recharges well with ball chargers. I have a new ball machine and new ball chargers. People don't usually ask which ball has the best felt because the ball goes flat first. Since my ball machine balls will be stored under pressure, it's really about most durable felt, but people say certain balls don't work well in pushing air back into the ball. This is about pressured balls, not any pressureless. I put a lot of time into the search and only found one person that spoke about this setup and he used Dunlop practice balls. I wanted to use Wilson US Open balls, but many people say the felt doesn't last. Any insight is appreciated.