I just ordered one lol, not unhappy with the 19 though it still gets out of the hole fine. For 30 bucks or less I may as well have the 18T available too. The problem with the chart is the lack of a tach. I assumed the TBA at 70MPH is turning 4000 RPMs. The RPM part is critical to the little app.

All I know is I am very happy not reaching for 6th gear.

I try to aggravate one person a day. Today may be your day.