I'm posting this for a ski buddy, but also want to know myself as I am very close to trying out a Reflex front boot.
Friend purchased a brand new Reflex front boot/binding system from a reputable store, they set it up for him and he verified it per the Reflex Manual. He is a size 12 boot black with a Large carbon plate. His din setting was originally 4.5 and could safely release from the dock. He has had maybe 4/5 sets on the system and having a hell of a time. After one pass he notices that there is significant play in his toe, left/right. He tried to increase the din to 6/7 to help this, but it hasn't. He has had two pretty bad releases while crossing the wake this week and is about ready to throw away the Relfex system.
I know most of you are very meticulous and know your systems inside and out, hoping for some guidance to keep him on reflex, and maybe sell me on the system too.
Two things we noticed on the dock yesterday (while keeping social distancing)
1) When he first locks in the boot is secure as it should. If any backward force is applied to the boot, the release mechanism moves and allows the toe to only contact the bar at the top. This movement is excessive, maybe 1/4". This allows the left/right toe wiggle. I know you can move the binding mounting point to the next hole forward, but that should be only after the boot wears.
2) The large plate has a lot of "Rise" at the toe bar. Due to the large foot, mounting hole locations and load put on the plate from the boot/binding, the plate of the toe bar is maybe 1/16" to 1/8" off the face of the ski. He is on a 68" 2019 Vapor Pro Build. To get the proper boot placement there are no other holes in binding or ski to better secure this.
We are just average weekend warriors, he skis at -15' - 30mph through 34mph.
Two other folks in our club also have the Reflex system. Ones boot did not move at all (size 8 with small plate), the other moved just as much (size 10 with small plate), but his system is older and was still on the rear hole for the release mechanism.
Any help would be awesome.