Let me start by saying I have neither BUT I do have a couple DAR Gen3’s and an AvengeX Bottle gun. The DAR’s are very similar to the Airacuda Max as they share many of the same parts and are regulated but the regulator can only be adjusted by disassembling the rifle (as far as I know). The Avenger (and Avenge X) have externally adjustable regulators. I did not buy one of the original Avengers because I just didn’t like the looks of them (too plasticy looking). The Avenge X just has enough of a different look that I took the opportunity to buy a refurb when PA had a decent sale on them recently. One thing about the DAR (once again- I don’t know about the Airacuda Max but they are very similar) is the limited shot count. With the rifle tuned to about 34 FPE I get three full mags and then another three rounds for a total of 33. I can get slightly more shots at the same energy output with the Avange X at the same 3000 psi fill, but the bottle allows me to fill to 3500-3700 and get slightly over 80 shots. If I filled to the 4350 psi mark, I’m sure you could easily get well over 1000, but I figure its less wear and tear filling to 250 BAR. I’m just an hour north of you (just west of Hamilton) if you would want to try either a DAR or an Avenge X out to see if you like either one. Shoot me a PM.