After you make sure the sidewalls are cut back, you need to make sure your bases are flat.
Ski Visions makes tools for that. Once you have flat bases you'll be able to set your edges correctly.
After skiing today, I took my 1/2" square High speed steel bar and pulled it down the bases to see where the high spots were. After a few times pulling that down I took the Ski Visions tool with the file and pushed it down a few times and could feel the file touching the base metal edge most of the way down.
Then took the Ski Vision tool with Medium Ruby stone and pushed it down 5 or 6 or 7 times. Then put a 200 grit moon flex stone in my 1* base guide and slide it down the base to knock off any high spots or nicks in the base edge, followed by a Swix Swiss file in the base guide.
Then turn the ski up on edge and run the 200 grit moonflex in a 3* steel edge guide down/up the edges 6 times followed by a 400 grit moonflex followed by a 600 grit moonflex. Wipe the edges to dry of the 50/50 mix of water/denatured alcohol.
Check out this site for tools,
Edited by Max Capacity - 3/4/16 at 2:52pm