GirnBlanston:
Beware buyer. This ball sucks. If you use backspin on your irons it falls short by10 yards but not all the time. Highly inconsistent. Buyer beware!!!!!!!!!!!!!!!!
Not at all. I use these balls and they work fine. Except for those rare WTF shots, they play consistently.
You do have to learn how to account for the spin on ANY ball as it affects distance on each shot,
When you change clubs and/or balls, expect things to be different. I have mapped distances each time I changed a club or ball. That is the only way to know how they will perform.
You also have to learn how each hole plays, as not all play the exact distances marked.
But I assume you should know all that.