Hay Chris
my 2¢ if you are going to buy a flatbed dont buy one that uses grit rollers to move sheets! Sure, me and Mike were early adopters and jumped on the 72uvr from colorspan-it was pretty much the only option then, but now, with so many vac tables, run from the grit rollers way too many feed issues for production
as for the QS, I cant help but I am very happy with my gandi flatbed, to the point that i'll buy another!
I believe the vutek belt system is pretty good, but a vac table still seems the best.