Has anyone successfully used the USCartool A500 Crossmember?

As far as engaging Overdrive and Converter Lockup I'm going to keep it very simple.
Two rocker switches on my console, one for each function, so I can flip them on or off as needed.
Fully automatic operation would be cool, but I think this will work fine for my driving style.
Basically 90% of my driving is on the highway. I'll just run it as a 3 speed when in town, and then flip them on when I hit the highway.
Just ordered a couple lighted rocker switches from rockerswitchpros dot com. And a couple of custom actuators that read Overdrive and Lockup.

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