That's too bad, you could always contact mvp, I've heard things about them replacing the weird ones. Even one I saw L2 out of the gyro box the guy was raving about how well MVP treated him and sent a replacement
I'm definitely in the wave camp over the vanishes. Both good discs but the wave was better. Most of my waves have been as expected. Got a freaky blue plasma pfn, cursed by Monocacy so that it would always fly 30' too deep. He musta beat just enough. It's my longest/ straightest/glidiest one I own.
I get a decent amount of flight variation plastic to plastic and with weight differences on the waves. The plasma wave should almost have different flight numbers.
Yeah some of em are a toss up but generally the half slot jump between MVP/Axiom is usually a fairly close jump. I'm still not sure about the insanity being a broken in inertia. Alike sort of, they kind of relate but it's a different flight. I could power up a 155 inertia and it's dead straight, I can still hook good anny's or hyzer. A heavy inertia I can cheese on an anhyzer and still get a straight path, small turns and a small but fast fade (kinda dumps).
With an insanity at the same light weight it's a wider but still tight S ( with the right disc that's not too worn in). A worn one will wander further anhyzer and possibly pan wider as well. More power means more turn, sometimes a lot more turn. More glide as it hyzers out too less dump, but if you plan your anny arc to hit closer to the ground you can still thread a straight shot.
Both great discs in their own right, but still different... not quite different enough to pack both in a small bag though. A lot of different results depending on how you throw. If you like a touch of anny and nose down or a straight thumper- inertia. If you like a carefully planned anhyzer flattish long arc or touch of hyzerflip then- insanity.