I knew within a few minutes of talking to my PSO that he was the one. Before my purchase, he had me come back to throw a few balls so he could see my form, etc. He knew immediately what kind of ball would be best for me. He narrowed it down to 3 or 4 balls for me. He even let me use his Ebonite GB3 to try out (which was an awesome ball). Ended up with a Hammer Diesel, hooked me up with a good deal that I couldn't pass up.