alberich35:
Except sometime, WGT free balls are rebadged Srixon Z-Star which are not so bad once you fit the 2 dots meter speed.
Yes, some of them are not bad. When you only have one it makes sense to use it in unlimited round CTTH games. If you lose it or when it eventually wears out it's only a few more shots with the starter ball to finish. Not too frustrating.
If you're really patient a few of them repeat from year to year so you can just let them sit. A few years from now you'll have a full sleeve of a decent ball for free. That removes the risk of getting stuck with the starter ball in the middle of a round if your preference is stroke play..
WGT should develop a ball display rack to sell in the pro shop where some of us could show off our collections. Some longtime members have over 40 or 50 of these specialty and logo balls now.