Got a RT, need help choosing the reg!!!

[CAT/J]

Howdy fellas, bringing my RT back to life...Been doin research for a while...and I'm trying to push the bps limits...so I know I'm lookin to feed the beast a healthy 1000psi(minimum). Its been a while since I've been around... but I've got three tank/reg combos to choose from... Asking for advice based on personal experience preferably. Thanks in advance

-Nitro Duck Ireg 68/4500with all available pistons... Should I drop the 1000psi piston and go to town? Are they consistant at such pressures?

-CenterFlag Dynaflow 68/4500...Heard they're stable at 1000psi and beyond...???

-AGD Flatline 68/4500... Maybe its a no brainer...worked well on my E-mag oh so long ago...but then again I wasnt lookin for more than 1000psi

Looking to use what I've got(above), before I strap a scuba tank to my back and shoot ropes of paint...

[Dark Side]

I don't know about the others but my Flatline has worked well for the last 4 years with no maintenance even at 1200 psi for grins.

[211]

never have a problem with any of my centerflag tanks