There's a complex part of this game that many either don't know about or don't understand and it causes a lot of what you're looking at. I am not a mobile player so apparel doesn't exist for me but I suspect that might add to the deviation, IDK.
At any rate, this thread goes a long way to helping understand what's going on. Basically, it's a built in random deviation affected by equipment.
p.s., This statement in the very first paragraph has since changed to replaced the dots with actual numbers......
Each and every club on WGT has a 5 dot rating for each of these categories.