Hello, I have tried both the Alpha Soft and the Blue Impact Soft. Haven't tried the Black. The Blue Impact, imo, is a bit more reactive to cueball english than the Alpha. In terms of feel it is similiar to a moori. It all depends on your personal game, it your a player that hits alot of center ball, the alpha could be preference for you. But I tend to use alot of english, which the Blue Impact Soft seems to enhance more than the Alpha. Either tip does not mushroom or glaze over, which was very surprising. I heard somewhere that these tips are engineered towards using Navigator brand chalk with these tips, But I still am hesitant to shell out $20 for a piece of chalk