Got 10 minutes?
Go to the first hole on Kiawa chose practice mode.
Get yourself into the bunker beside the green.
Take your lob wedge and from full power reduce it watching your players club
click down 4 times. Hit the shot. Write down the distance.
Putt back into the bunker repeat the shot. U get a total of 10 shots on the hole.
Start again.
Repeat the process and vary the number of clicks down on the club.
Try it with back spin.
In ten minutes you'll have a better idea.