Newbie here. This will be my 3rd season snowboarding so i guess i'm an improver. I'm 45 yrs old, weigh 180 and am 5'7" short. My question is in regards to board length. Last year, I bought a k2 select 153 and ride bindings from thehouse.com . My friends say my board is too short with the stance I should be riding. The board has 19" center markings. Can i just move my bindings further apart if indeed i should be riding a wider stance? Also, I was playing with stance angle last year. Right now i'm using +15 on the ft and -6 on the rear. Is this angle helping me or hurting me? I don't go near the park, just cruise the flats. Appreciate your help!