Ball fittings seem to be hard to find. You may want to get on the mailing list at a couple of local courses with decent pro shops so you may get some advance notice. I last did my own comparison with the 2013 release. Driver speed is high 80's, and I have Dritac grips (soft but with less feedback from ball striking). I don't notice a difference on the green with Pro V/NXT/DT Solo - takes a toprock to feel the difference. Short irons and wedges, no discernable difference. The -1x was better for me with longer clubs/driver, as my total distance was a little longer and appeared to stay the course better than with the -1. The online system suggests the -1x and the NXT Tour as well, but that didn't influence me. Both work better than the chrome yellow I use on cloudy days. ..Wishing for the optical Pro-V.