I'm always finding myself opposing this common wisdom of more stability back more maneuverable forward. I had an extra pair of skis and experimented with a couple positions. On a stiff ski, like a Kaestle or Legend Pro, if you move the binding forward you are going to have more tail behind your foot. This additional tail becomes somewhat un-manageable, hard to release, hard to platform check. well, you get the idea. Plus, Phil has already spoken, so you're good. I also feel that the long established companies know good and well where to mount the binding based on sidecut and flex of the ski, and are kind enough to indicate that spot with a mark.
So I rolled the dice and decided to go for the MX88 (178cm).
I am wondering if the factory line is the recommended mounting point by everyone here or is there an advantage to mounting slight forward for added quickness or forgiveness especially in bumps?
Thanks fo all your help and suggestions!