I ski for Purdue and I switched off my concept in March. I found that it was a huge difference and has definitly helped my skiing. I switched from an 02 concept to an 03 CR7 and I love it. It is 10 times faster and although it is top of the line it is still as forgiving as it needs to be for me to continue learning. I don't know how old your concept is, but I would say if you are starting to get into shortline I would definitly upgrade the old ski.
Check out the message board on Purdue's site and look in the equipment for sale section and I believe one of our team members has an 03 CR7 for sale if you want it. expert.ics.purdue.edu/~h2oski
(Message edited by Bradshaw on August 03, 2004)