The idea behind manual valve bodies was the intent to rely on the drivers input ONLY for gear selection. No tuning, no shift tables, no datalogging. When it was only 2 forward gears it was doable. Then came the 3 gear transmissions, and then the 4 gear transmissions. Well now there are 6 gears on the tracks and streets with more in the making. Can you imagine a regular non-reverse pattern manual valve body with a 6 speed in a parking lot? Well we have some more options that can keep things simple and NOT have to deal with clunky shifters and counting clicks all day. Our patented H pattern control system for manual valve body transmissions allow you to drive an automatic transmission with the gear selection capability of a manual transmission except there isn't a neutral between any of the gears! Imagine being able to go from reverse to first in one selection like a manual just without a clutch pedal. Or going from 65mph in 6th gear on a highway to an off ramp and waiting until you're at the next stop sign to simply put it in first and just go. All without sequentially having to go down all the gears and no clutch pedal. You can stay on the gas when you upshift or even lay into the gas, drop from 6th to 4th and hold on to that pull! Our testing has been done with 6L80, 6L90 and the Allison 1000 transmissions. Send us an email, let us know what you have and we will supply you with lots of info on what we can do with this!