I thought I understood it, but evidently I don't. Fin forward makes for a shorter ski, that turns quicker with less tip in the water. Got a new ski and they recommend the bindings be set at 28.75. The farthest I could go back was 29.5. I've always heard that if you move your bindings forward you should move your fin forward so stock was .735, so I moved the fin forward to .755. Had a ton of tip in the water. So I moved it all the way to .800, and it was slightly better, but the ski was so aggressive, it was almost impossible to ski.
I was told to move it back to .715. The ski was millions times better, with less tip in the water. Makes we wonder if the sensation I was feeling was not too much tip in the water, but the ski just turning too quickly?