I'm looking into buying a transbrake valvebody from redneck racing for my C4. They list it as a pro brake saying to use reverse you must shift to reverse and then hold down the t-brake button to go backwards. Anyone have any experience with these, and how much of a PITA is it to have to hold the button in while going backwards? On another note, at the end of a run with a reverse manual VB, is it okay to bump back down through the gears to nuetral coasting down from 100+ mph? I don't want to screw up my C4 or VB doing this.