One thing you can do that helps a little is to cut the carbides. Cut off the couple inches behind the spindle toward the rear of the sled. I've never tried taking off one carbide but cutting like I said will help a little.
If you take one of the carbides off, the ski will wear out much faster. Do you have two cutting carbides on it? I make my own wear bars for the Simmons, just use 7/16 hard rod, no carbides.