I have seen all 3 new balls here in Richmond. Track staffer Paul Seay practicing with them and I am really impressed. All 3 have a unique motion and compliment each other really well. Most impressive is the 930T, that ball is simply amazing. That ball doesn't stop. It has some serious continuation!! It also seemed extremely versatile, as Paul played outside and really deep inside with ease. He is excited about these balls. Myself, I'm more intrigued with the 505C. That ball doesn't over hook off the dry. It makes one motion and just rolls. Well, good luck to everyone.