The Calls are that much better than what you are using. If you don't have money for Calls play the Srixons, or my cheap ball is the GISDs.
TBF I prefer the Call s balls. The spin is more useful than a few extra yards off the tee.
Be careful of the spin though. You only need to touch the bs most of the time. The Call spin balls sometime bs a little with no bs applied.
Strangely, I have noticed less spin with my tour burners recently. Many long ironed shots I have put 50% bs on and they have hit the green short of the flag and run on four/five yards past. It wouldn't be fair to say that the R11 introduction has had anything to do with that, would it.
TBF. I have noticed this on a couple of full STA games, a course that I haven't played so much recently. Maybe, that's the performance on there compared to other courses.
Get the Callaway S ball not the Z. It's cheaper, too.