I had been a dedicated ProV player for many years. I would often use the ProV1 during the spring and fall when the temps were cooler, and then switch to the ProV1x during the hotter weather in the summer. It is highly likely that the difference was more a matter of feel than actual science, but I am sure that we can all say that about some part of our game. A couple of years ago I switched over to the Titleist AVX in Yellow. First of all, the yellow is so much easier for my old eyes to follow and the colour chosen by Titleist for their AVX is excellent and holds up extremely well. Secondly, the AVX is a fantastic ball that has great spin around the greens while somehow has a lower spin off the driver. That gives me more distance as well as keeping the ball in play giving me a shot to the green without having to navigate my way through the trees! Curious - Have you tried a variety of Titleist Balls ? Which one have you settled on as your preferred Titleist offering ?