I basically got the initial setting by watching the engagement LED on the CTAP as I idled the car in gear, releasing the clutch pedal, and changing the setting to coincide with the moment the RPM began to pull down from the clutch engaging. Turns out it's basically the perfect way to set it up, because I haven't had to adjust it at all after going to the track. The most awesome part is I can now leave the line at full throttle, only having to modulate clutch release and no longer worrying if I'm applying the correct amount of throttle at launch to prevent tire spin. Now it's just a matter of adjusting RPM settings and possibly having it disengage slightly sooner to knock down my 60' times. Got a video of it in action here:
https://youtu.be/1qnxrjiXu1E