We use Stud Boy Shaper Bars on all of our sleds.
I'm very happy with their performance.
I'd like to try a set of Bergstroms but I haven't found a local dealer carrying them and I'm still leery about buying on the WWW or mail order out of the U.S.
WE WILL SEE :whistling: I just smoked a set of factory 6" 60'S on flex skis during the SW ride. Left side was gone from the middle back. I do have them shimed 1/8"and there is alot of wt toward the backs, but man it cuts. Didnt even know there was a bar missing till I notice the ski sitting funny.Roetin's