quoting from a thread on PMTS and moguls, in regard to n off-topic issue raised:
What are the differences between CSIA and PSIA, skiing models, and what is the basis for the difference?
Originally Posted by dewdman42
This question was regarding CSIA and hips behind heels. All I will say at this juncture is that yes, CSIA is teaching several things that are very different from PSIA. I'm not PSIA certified yet, but Im going to take my PSIA I exam this weekend and go for II next year. So I've been paying attention. Also, I was working at Keystone for a while with my CSIA cert, and talking with PSIAers and watching them.
This excellent thread is about bumps, so I will leave it there, by just saying the two approaches between CSIA and PSIA are definitely way different, especially at the lower levels. Some of you would be flabergasted if you went to a CSIA cert clinic. If you are really curious, I would suggest you start a thread posing the question about differences and I will tell you what I think I know, after which I'm sure about 30 angry and offended individuals will reply.