I honeslty could care less how you shift it..But when it comes to throttle stops there is one electric stop that will allow you to adjust opening and closing rates. It is made by Dedenbear stepper unit and is $1800..If you have any other electric stop you CANNOT adjust the opening rate, which if you are trying to run a .90 class will sooner or later bite you in the hiney, or you make no power in the first place.

As for air leaks, well mine will hold pressure with the bottle off in the lines for weeks. It aint rocket science to learn how to make it less prone to leaking or to turn a bottle on and off. If you use a large bottle it will last you a LONG LONG time. My little 10oz one would last 3/4 of a year running the stop and shifter.

Then again it is likely I don't know what I am talking about.