after using koken zeal, koken regular (just your basic metal rail made of sheet metal with friction fit metal clips), nepros, and ernst/tekton twistlock,
i have to say that koken zeal is the best.
i made this thread before about wanting something different:
https://www.garagejournal.com/forum/showthread.php?t=467364
i think i was just spoiled by trying good rails first. haha
the ernst twist locks are decent enough. i like them. but unless your sockets have knurling, small diameter ones are hard to get on and off. my 1/4" zeal sockets are really ******* hard to twist on and off of there.
really, those zeal rails are the ****. i love balls on there that grab the socket detents just like a ratchet would. sockets go on and off so nicely.
the only thing that annoys me (though i confess it's occasionally super helpful) is the magnetic base. i might try heating up the foam strip on the bottom and peeling it off carefully. maybe the magnets can be removed without ******* it up.
actually, i wonder if you can just pop off those end caps and easily slide out the magnetic insert. if that's the case, koken zeal rails get 5 stars from me.