I have a $99.00 Electric with an oil press sending switch. For my 700R lockup. Start the car stick it in O.D. it shifts at factory specs. 13 - 36 -- 55 & loc /up. Why this type ??? NOT a dam thing to screw with, Put it in gear and drive it shifts up & down and I do NOTHING. It shifts just like my Silverado, WHY? Its a cruiser, The wife and I go on some long trips in my FAKE 1970 SS 454 Sta. Wgn. NO BUTTONS,,, NO SWITCHES,, NO GADGETS ! How well does this system work? I installed it 14 or 15 years ago and just a little over 65.000 miles on the " SIMPLE SYSTEM ", So I guess its an " OK " set up ! I tell the wife or anyone that drives, Stick it in " D " and go. I just love the " KISS " method !