Svend,
On our upcoming trip to NY, on Sunday, we get to ski with Helluva. I would encourage you to ride some chairs with him and talk about set-up. He always has a video camera with him and I hope to do some video work with him, you are welcome to join up while we do this ( speaking for me that is, but, hopefully Greg will agree ). I believe that no one in this forum sweats the details of set-up as much as he does. When he speaks, I listen. He and I are doing some PM's about my getting work done by the person who works on Greg's boot in Elliocottville. I want to see what the video produces first.
You are correct that my boot change will change some aspects of my skiing. Don't know what they are yet. One aspect is that the new boots are 10 mm shorter, and, I adjusted the heels (only) forward, resulting in a slight shift in the mounting point related to the ski center. I hear your point on moving equipment on your Fischer Progressors. If you know a ski is not working compared to others, and all else is constant, an equipment adjustment just may be the solution.
I agree with Helua's argument that change without analysis by a trained second set of eyes is a crap shoot. I'm not against tinkering, but, change is a time of opportunity and danger. How do you know which direction you are headed toward? A small anecdotal story. Two years ago, I changed my golf irons which are custom fitted to an individuals swing to make sure when the club contacts the ground, it's flat not oriented to the toe or heel of the club. We did all the standard tests, but, without video. Shortly after getting my clubs, I was taking some instruction and my pro showed my on video that my swing had changed. My clubs were fitted to an incorrect swing.
I do know that there are many drills, from Harb and others, on improving fore/aft. They seem to be doing good things for my skiing this season. Will Helluva's video concur, we'll find out in a couple of weeks.