I have a set of 7" Slydogs. I really like them off trail, They are light weight and very manueverable. They have a really aggessive keel on them made for riding in loose snow, this also reduces the need for running longer carbides. This keeps the ski weight down but would explained thier on-trail performance. I got them from
Go big parts, complete to the door was $418 and he custom blended the colors I wanted and it only took 2 weeks for them to make and ship.