A couple of earlier points:
--Advantage of rails...I packed two pair of skis into a bag for a flight, and with the boot bag (containing snow boots; my ski boots get hand carried) the combined bags were a pound overweight. I slipped the bindings off to get the ski bag weight down. The security inspectors had a few head-scratching moments looking at bindings in my carry-on....
--Ski flex with rails...The Head/Tyrolia rails I've seen have four pairs of screws in each rail. One pair of screws holds the rails in place in three dimensions--down, left/right, fore/aft. The other three pairs of screws in each rail hold the rail down and hold it in place side-to-side. They allow fore & aft movement so the ski can flex under the rail.
--Advantage of rails...I packed two pair of skis into a bag for a flight, and with the boot bag (containing snow boots; my ski boots get hand carried) the combined bags were a pound overweight. I slipped the bindings off to get the ski bag weight down. The security inspectors had a few head-scratching moments looking at bindings in my carry-on....
--Ski flex with rails...The Head/Tyrolia rails I've seen have four pairs of screws in each rail. One pair of screws holds the rails in place in three dimensions--down, left/right, fore/aft. The other three pairs of screws in each rail hold the rail down and hold it in place side-to-side. They allow fore & aft movement so the ski can flex under the rail.