Doubt it’ll be as good as the kits being produced now. They claim 60 shots with .30 caliber with a 480cc tank? At what power. Certainly not up to 100fpe.
I got about 70 shoots on silver surfer @ 900 fps @110bar with .30 and 44.7gn and 580cc bottle, so I have no reasons to doubt on that, SilverSurfer have a different setup but still ... for me 60 shots on .30 cal 44.7gn, BIG YES on a 480cc bottle
You will have with the FX kit a 120-130 fpe IMPACT, that is just great!