Shims with 6.9's

[nytro66]

I am running 6.9s and put in 1/4" shims in this past weekend and sled now feels like it has increased darting. Are the shims recommended for the 6.9 setup?

 

[canoehead]

I personaly wouldn't shim a dual carbide ski..Don't think you need to. If it does dart now pull them out, too much heel pressure.