Ah ok that makes sense. Yes normally it's this way or side slipping, depending how steep it gets I believe for some, or actually for most of them, it's not easiest thing they did on skis. Majority of slippers are local ski instructors, and no matter what someone might think, majority of ski instructors are not best skiers you can find on hill. Not to mention apart from that weekend when they work as slippers, they pretty much never ever come anywhere close to injected courses. And if conditions are right, that injected snow can be really bad, sometimes even for people that are used to it and are on it on daily basis. So yeah I have seen few terrified slippers during all these years on courses. Well honestly, there were few times, I was scared to get down the course myself, and my skis are prepared way better then skis of any slipper. So yeah on steep sections and with right conditions, it's definitely not easy or fun thing to do.