How many skills is too many?

[347SPECTRE]

3 crosshotbars are still comfortable to navigate during battle with controller
16 slots * 3 = 48 skills. Maybe 42 skills to save some slots for pots and macros

You can have up to 40 buttons on controller before having to switch cross hotbars, using r+l and the wCross hotbars.

Edit: kept miscounting, not in game to check visually.