My player need to dunk more

I'm not sure which is it.

Dunking Ability %

Or

Vertical %

Please help so I can make this player get off his feet more. I'm not trying to make all his dunks go in for points. Just for him to dunk more instead of a layup.

Thanks

It should just be Dunking Ability but raising both wouldn't hurt.

Its....dunk/layup frequency

Dunking ability just means that you complete better dunks. 360s, etc.