I've been exclusively overmolds for a while because the discs work well for me. I like the plastics, the molds, the flat tops, the highly visible multi-colored discs in the context of filming, etc.
I try other discs all the time and if I like them enough I'll bag them. I throw Wizard rounds sometimes out of nostalgia, I've field tested random drivers like the River, Shryke, Athena, King etc.
I buy stuff from other companies sometimes. Zone OS is what I'm currently shopping for.
I also have no issue recommending other brands to people. I've gotten a lot of beginners hooked on Wizards, Fuses, the Buzzz, Leopards etc.
I dunno how much of a difference gyro makes, but I've always felt like the overmolded discs I bag tend to lock on to their line better than similar discs without overmolds.
If I take my proxy and throw it 300' with hyzer, I expect it to hold that hyzer. Same throw with X non overmold neutral putter, I expect to flip up to flat a bit more.
Not a massive difference. I can make an all Innova bag work for me, or a mixed bag. I could throw Judges and Rocs and Teebirds and D2's and still play pretty well.
But I like bagging all MVP / Axiom because it keeps the disc feel and disc flight more consistent across the board
I'm very happy with my bag. If it bothers someone else I bag all one company without a financial incentive to do so, that's their problem. I found what works for me.