I used to level my games with precision. Now I just use the level to make sure they are level side to side. Each game is different for me and I like to play the game to determine just the right pitch. Most of my games I prefer fast and steep-so I have the back legs jacked up all the way. Some of my games have difficulty with hitting ramp shots at steep angles-so I back those down a bit(ie. TFTC, Mando). Play around with the different levels and determine the best pitch for that particular game which will affect gameplay with different speeds. -Not every game is the same-nor should it be imo.