Wow, talk about back from the dead.
I also just use a non-chrome file to knock off any high spots on the base edge.
If I feel the need to sharpen the side edge, I clamp a 1.5" of Panzer file on the steel edge guide and back ip up with a diamond stone with another clamp.
I pull the combination down the edge, one time, may be two if needed. Than remove the panzer and run the diamond file up/down a few times.
I'll use some black ink on the metal edge so i can see what I'm taking off.
I'm beginning to figure out if my skis don't have great edge hold, its because I'm not rolling my ankles enough. Watch the race team kids, see what they do with there ankles. I watched my son, now 26y/o, on his first day back on skis in 7 years, ski on my Volkl AC30's from 4/5 years ago. It's amazing how the skis perform when you have great skills.