Bobdea,
I am riding a 20 inch stance, I am 6'1'' tall. I am riding indy's ( stiff). 3 degree toe lift, 6 degree heel, and both times it happened on a donek axxess 182. First time front foot, next time back foot. I am 225lbs so I am definitely not small.
I also rode rossi's 190 and 184, and just started riding a Tinkler 185, no breakage. I see what you are saying, but come on. Shoulder bolts should not break. I rode burton race plates last year which flex and allow you to gain momentum, a stiff binding allows none of this.