The Pro V1 is the best ball for my game.  I like the 1x as well, but with half iron shots the Pro V1 just does it for me.  Either ball is a good choice, but you'll never know until YOU try.

Handicap means very little towards what style irons you should play. If I had to place a number on it, I would say about a 4-5. Best way to determine if you should be playing them would be to go to the range with some impact tape on the face of your irons…

I like the idea of adding slope/rating. My home course has 2 18 hole courses to it. I'd like to be able to separate the and know which one I played on which day. Other than that, the feature is really good.