Hmm.. I'm 5'4", 150, and heard I should stay around 20".. I don't look wide at all (151cm).. but I kinda want to pull the front foot back an inch. My knees feel slightly cocked. Will that throw me off for learning switch if my bindings aren't centered?
I think the most common answer on this board is "it depends!"
A lot of it Is about your board. If its a twin, it'll affect the ride just s little. If you're riding a directional board it'll prob feel a bit squirrely.
The c-x is directional I ride. When I switch it feels back heavy, as in, the nose becomes really short and is stupid easy to maneuver while turning. Since the tail is so long, -initiating- the turn is a a lot harder then Im used to. It's really odd but kinda fun to feel like I'm learning to ride like regular (I'm goofy).
I'm sure everyone will agree, experiment, experiment, experiment! If you think youll be more comfy shortening your stance, do it and give it a couple runs.