The Maverick is much like the Wildcat except for its plenum and double reg (mechanically Speaking)
You should go for the Impact for these reasons:
Slug probe kit (adjustable)
Valve Adjustment
More space for and more Hammer Weights available.
The Impact can still work Smooth as Silk at 170bar, but a Wildcat/Maverick won't.
Have you reviewed the Matt Dubber Slugger -
https://utahairguns.com/fx-impact-mkii-matt-dubber-slugger-edition
He's got one for himself doing his Patriot .22 34g .217 at 1000FPS
If it was possible to mach the performance of this with a Maverick, then Matt would have done one!