In a coaching course the topic of sidewall planing came up, and the coach was trying to explain that you can only take off a small amount of sidewall on a certain type of ski. I couldn't tell if he meant capped or sidewall construction skis though and I didn't want to press the subject. So...
Which type can you take off more sidewall on?
Of these skis, which ones can I actually take off sidewall without the ski falling apart?
Dynastar Omeglass World Cup SL
Head Peak 82
Dynastar Contact Cross
Head Integrale 009
Also how can you tell if construction is cap or sidewall? When I visually inspect all the skis, they look like there's a sidewall, but apparently that's not the case for all them...? (I remember on some skis the topsheet just seems to wrap around, I assumed that's cap)