Hey I was reading on the steam forums in the 1.05 patch thread that right stick down is actually rear brake. I didn't know that. When I first started using split brakes, I used rear brake with a button, and i tried using it in different ways with the front brake. I never found a comfortable way to use it, and I just gave up on it. I still use split brakes, but I only use front brakes. When I was experimenting with the rear brake, there were times my stopping distance did decrease, but I couldn't be consistent. That's why I stopped using it. I'm way more consistent using just the front brake.
I would like to know if the rear brake on the right stick is actually analog. Does anybody know? If it is, I definitely want to use it, but it will be tough to relearn my controls.