I wouldn't say it needs adjusted . . if it's a problem then yeah, but otherwise I'd just go with it. I actually adjust my drift depending on what angle I'm trying to get on the lane. Doesn't make much sense I'm sure, but I make zone moves with my feet, and adjust my drift according to what I'm seeing and what I'm wanting to do. I already drift left to open my shoulders up, but being that I adjust my drift, board moves with my feet don't make much sense or really have much effect. I'm a feel bowler too, so trying to look at specific boards or marks just messes with my focus, so I may not be much help here . .
