I mean compared to MK7.
EDIT: Reading up on it, seems like going above full bars is useless. What the hell...
Yup, it's dumb. Anything over a full bar is wasted, and acceleration is the only stat that has that stipulation.
It's one of the many reasons why heavies are better in this game, as their stat distribution ends up working out well to even out that bar and have good stats elsewhere.
I swear red shells in this game have a very odd behavior. Like It's supposed to hit the player in front of you, but it sometimes hits a player in a higher position.
I've noticed this, and have seen 2 instances where I can kinda predict it.
1. Throwing them in midair is a crapshoot. Even though they can go off ramps and track people, they sometimes seem to go batshit insane when you do this and just skip people. I once had someone behind me with triple reds on Toad's Turnpike and took that ramp truck so I was midair when they got thrown and avoided them.
2. If someone is in hitstun they get passed by. This happens a lot with triples, even if you space out 2 shell throws one will usually just pass by after they get hit.
They do just pass people sometimes when they're really close and I'm not sure why that one happens. I've also had the blue shell just skip me before and do another lap.