WGT have a coding on their balls
GI = Game Improvement - these have a 'feel' attribute, the more dots of feel the more it will slow your swing meter down.
GI-S balls have more SPIN ability
GI-D balls have more distance ability
GI-SD have a little of each.
Compare the dots of attributes with the balls to understand the subtle difference of each.
Get used to something like a GI2-S ball for a sleeve or two. Understand yu have an 'S' (Spin) ball. Use it for spin. (not much spin on WGT Standard wedges)
and THEN, go back to the WGT standard.
You will notice the difference.