Back in the Spring, I was one of the fortunate ones that was chosen to receive two sleeves of test balls.  One sleeve had just a black square on them and one sleeve had a black circle on them.  I played both balls often and fell in love with the ones with the black squares . . . the ball went forever and performed well around the greens.  I know that Titleist marked them plainly as to not give away what kind of ball it was, but does anyone know what prototype the black square was designed to be?  The new ProV1X?  Or if it is going to make it to market??  Let's hope so . . . because I am going to load up!