ok first of all a 700r4 uses 2nd gear oil to lock-up the converter you can run power and ground to the tcc solonoid and it will not lock-up the converter at as stop because you don't have 2nd gear passages pressuresized no need for brake switch . I use the 4th gear switch which comes in the trans to lock-up the converter. one wire no kit no brake switch no toggle switch to forget and smoke the trans there is a reason you call it an atomatic.200r4 125 3254l and 350c trans can lock up the converter in 1st not a 700r4 Next stall speed has nothing to do with cruseing down the hiway a 70 the converter is locked up no slip at all.