Hi, have some questions on the different iterations and their pros/cons.

Currently have the std. RMVB in our 70 Charger, 99% street, no 1st gear braking.
Doing the same to our 71 RR.

What do the different terms mean, i.e. clean neutral, etc. and what are benefits?

Not looking at trans braking or CO2 shifters.

Thanks, Joe