When I was posting threads about difficulty returning 3.5 serves this winter, I should have said 4.5. I realized my 3.5 group is a self-selected group of very huge hitters (with massive UE rate) Hit big, or go home, and play with the girls. That is why I was invited. Every single one of my 3.5 group hits twice as hard as a typical USTA field of 3.5 and 4.0 (which is why they will lose to the USTA Pattycakers) 3.5 and 4.0 USTA have very weak serves. Some of the goofiest & ugliest serving I have ever seen. I'm talking patty cakes frying pan, many of them. Pitiful pattycake 2nd serves (that can not be exploited by a 3.5, so it's a wash) To compete well in 3.5 and even 4.0 is to simply bunt the ball back. Otherwise, these pattycakes will beat you, since you will make errors.