What I know about bindings I could fit on the back of a postage stamp. Okay, maybe a business card. But large font. Premier Skis sells both the Vist Speedlock Pro Superlight and Speedcom plates with the VPA 412 binding. For a front side upper 70s width ski used for groomers (60-70%) but also some bumps and off piste, does one plate make a better choice over the other? All of my present and past skis had either Marker or Tyrolia bindings sans plates, so Vist and plates are both new territory for me. I appreciate any advice.
Come on, man! You know more than that...
As far as the VIST systems go, think of the Speedcom as being very similar to bindings where the bindings are mounted on a rail (the Head Tyrolia PowerRail system comes to mind as an example) and are easily adjusted for your boot sole length. The Speedlock system is a system designed for a higher level of performance where first, a plate is mounted on the ski, and then the bindings attached to the plate. The Speedlock also features the ability to easily adjust for different boot sole lengths. Both systems are not "fixed" in the sense that the rail and/or plate are mounted in such a way that it still allows the ski to flex as designed.
One major caveat: Of these two bindings only the Speedcom is GripWalk compatible.
So what to choose? If you are an aggressive skier who wants to put the ski on a higher edge angle and maximize the power inherent in the ski, get the Speedlock system. The only caution: the plate system will make the overall weight of the ski and binding heavier, and might not be appropriate for lighter weight skiers. Personally, I ski on the Blossom White Out (77 mm waist) with this system and find it works well in all conditions.
Mike