I personally choose the ProV1x over the Penta. I do like the Penta, but for me it's a mental thing. I haven't played that well when I've used the Penta so now it's more of a personal handicap than a problem with the ball.
Am I the only one who believes the ProV1x spins more on (full) wedge shots than the ProV1???
I have recently switched over to the new Srixon Z-Star because it still has a soft feel, performs nicely on chips and pitches, and doesn't come back 10 feet on full wedge shots...also b/c of lower compression for colder weather. It was cool to spin it back that much for a while, but I'm over it now. I seem to have trouble playing 5-10 feet past the hole and pulling it back because it doesn't always spin back the same amount. I've noticed with the Z-Star that it hits and stops (maybe coming back a foot or two), but it is more consistant. I'd rather play the distance to the pin, and have it stop a couple feet from the hole instead of hitting it a couple feet from the hole, and having it spin back to a 10+ foot putt.
This is all just my humble opinion, but I'm curious to hear other's thoughts on the spin difference b/w the V1 and V1x. Even the wedge spin chart from golf digest has the V1x spinning more.