I got my new Pro V1x test balls in the mail a few days weeks ago and have played two rounds with them. I don't know if it is psychological or not but seem to hit the balls much straighter than the older models. I feel the distance is almost the same as the older models and the feel is more consistent. Overall they are good golf balls and live up to the quality of Titleist golf balls. I did try to use the new Penta that my playing partners asked me to try and there was no comparison with the Titleist.  The penta feels like a rock and looks cheap.