I got a steal (literally*) on a few of these balls and I've played them my last few times out. I play the Titleist ProV1 exclusively so I'm comparing the HX to the ProV1.

Distance wise they're close but I think the ProV1 is better in the wind. The HX has a soft feel off all the clubs and is real good around, and on, the greens. It's definitely a premium ball ($44.00 a dozen at my local Dunham's Sportinig Goods Store) and it performs like one. My only complaint, and it's a big one, is that the HX Tour Black scuffs really easily. My wedges did enough damage with only a shot or two that the balls had to go into the practice bag. That doesn't happen with my ProV1's and at that price I sure won't be buying anymore.

I gave it a 4 rating for it's performance but I'd give it a 0 for durability.

*No, I didn't steal the HX Blacks but someone else did. A friend of mine is the store manager at Dunhams and I was in the store looking for a decent winter ball. I noticed a box of Callaway HX Tour Blacks was open and someone had "removed" a sleeve. I took the opened box to my friend to let him know someone had ripped off the balls and he asked me if I wanted what was left for $15.00. Not one to pass up a good deal on a ball I was going to try next year anyway, I soon had my "winter" balls.