I have a timing tuner, and my kit i bought came with a window switch as well, i am well aware that the timing tuner has a rpm activation switch in it acting as the window switch basically, but i wanted some input from some people that have used it, cause im not sure how accurate it is, and i am running an auto tranny and cant afford for it to be sprayed between shifts, so i didnt know if i should use the timing tuner for the rpm activation or wire up the window switch instead, and im not even sure if i can bypass the rpm activiation on the timing tuner anyways, kinda lost need some input, thanks guys! Appreciate all you juice junkies on here!

 

The window switch in the timing tuner will be fine for your application.
There is no need to run a second window switch, unless it adds a feature not included with the timing tuner.

What window switch do you have?