I personally have difficulty believing the MVP consistency hype. When I first started getting into disc golf I read a ton of amazing reviews about the consistency and performance of MVP so some of the very first discs I bought were MVP.
I got a Neutron Volt, a Neutron Amp, and two Proton Ions. All but the Amp immediately found a home in my bag because they are legitimately good discs, BUT my Volt was more HSS than advertised (they're supposed to be stable but mine turns less into a strong headwind than my Firebird, and Volts were never advertised as Firebird-level stability) and my two Ions that were both the exact same weight do not fly the same. One is noticeably more stable than the other. Both still made the bag and drove great and I loved putting with the one I putted with but they were definitely not the same stability.
This is not to put down MVP or anything. Despite having two different stabilities I still preferred the Ions to Judges at first, and only switched when I failed miserably at using the Ions on a wet day and decided I'd rather just have one mold that I can throw rain or shine than carry around a wet putter and a dry putter. And now MVP even sells a baseline plastic. If they'd come out with it sooner I'd probably still be bagging Ions, but I've already switched and gotten used to the Judges and I don't want to spend more money and time switching putters again when I'm happy where I am.
People have said that their consistency has improved considerably since the beginning, but 1) it wasn't like I was buying first runs in the first place and 2) the people saying that are mostly the same people who said that were over-hyping their consistency in the first place.
I'd like to believe that MVP is actually more consistent than other manufacturers now, and I do like all of their discs that I have tried. Regardless of whether or not they are more consistent than other manufacturers they make some great molds and I encourage everyone to give them a shot. It's just that in my experience "more consistent" is nothing more than fanboy hype.