As for the barrel - I have a gen 2 and it appears to have the new barrels from a couple years back. Very accurate in default configuration.
As for the regulator - My understanding with the Field Target regulator, is that they changed the specs so it's always ON. No turning it off.
From the look of the video, the regulator is set somewhere between 1300 and 1400PSI, so setup for a Crosman Premier Dome or JSB Exact might work well, though heavier. I suspect the JSB Exact Heavy would fly at around 720FPS, so not have the required range. Looks to me as it's specifically setup as a field "target" gun. Nothing wrong with that, just set your expectations accordingly. If you want to adjust it to send heavier pellets or have lots and lots of adjustment range, I'd bet the regulator will limit the adjustments a bit.
I'd like to see some groups at 75 and 100 yards with the various pellets to see what it can really do. Looks like 100 yards is well within reach, but how consistent? Can it keep up with an FX Streamline or maybe even an Impact? Sort of doubt it, but it'd be fun to see. If it can keep up with the likes of a RAW and Streamline and Impact, that's be a huge price point advantage for the sport.
And even though Crosman doesn't offer a bottle gun, it looks like they got 60 shots on full power (if I counted right in the video) so no wasted air. That's very respectable from a cylinder gun. did anyone else validate the count? They lost count.