Hi everyone , I got a sleeve of test balls over a year ago , my guess were prototype prov1x, great feel, nice distance, and quite nice trajectory as I play a slightly lower ball flight than some . Titleist did a great job of oricidibg with the test samples and instructions . Played 2 rounds with ball no 1 , 1 round with ball no 2 and only a few holes with ball no 3 . In all the balls I felt had nice spin control with middle and low irons and nice flight and roll from driver. On the greens the ball responded well to my sc mid slant , using the arrow reminded me every time I stood over the ball that feedback was expected from these test balls . Loved the roll on the greens off face of putter , turkey enjoyed testing the proto balls . Thanks again Titleist for opportunity to try out your latest . Would live to do it again sometime , sincerely , Jimmy