That 3-star Rage attack is PERFECT now! Still a few issues to address. Namely, the rumble seems to get stuck and constantly rumbles. I'm not sure if it's anything that can be fixed, but it's workable. Also...
I don't mind a combo to use the Cop Call function, but, at the the way I play, I have the Extra button to the left bumper and set to use the Back Attack feature. Unfortunately, I've triggered the SOS attack too often. I think it should be either remappable for the combo and/or to a less-used combo like Extra+Defense.
Don't get me wrong, you have an AMAZING game here already! It's so much fun! But I want to help it be the best it can be, so I do have to at least point things out. :)