im trying to decide how best to setup me markers, ive got 3 and there all different ion, RT pro, and blazer. i want to be able to swap the bottles around to save on fill's. so im thinking presets, but theres also the x-stream adjustable screw in type system, but the problem with that is each one would be setup for the marker its on, so again im stuck. can you get a good recharge and consistency rate from a preset? or am i better of the an x-stream or similar, although none spring to mind. ive got 3 pure energy regs at the moment which need bottles, also a flatline, and and x-stream reg, so i realy need to make my mind up. and last but not least on the ion could i rely on the maxflo Cheap version to be consistent with a HP input from a preset or should i get a cp reg or similar? oh and im working on the theory that the closer i get the tank out put to the opperating pressure the less work the maxflo will have to do and thus be more consistent, am i right? oh ok this is the last question, ive heard alot of people saying you shouldnt put a reg infront of a mag valve as it will starve it, is this true? id thought most systems these day would be more than capable or keeping up and again a more consistent input can only be a good thing.... right? thanks in advance guys and gals