I used all the features. The controller steers the nose wheels based on the gyro. The controller uses the brakes to steer the planes. I have the ABS on. On one of the planes, I even have different power levels set on the two brakes because one side always seems to brake a bit harder than the other. Then, …
There is the gear controller features. I only have one door, so that was fairly easy. But figuring out the current limits on the gear drive motors took a bit of testing in the air.
The T-1 has an external voltage regulator because the T-1 gear can't handle the 2S LiPo. The prolink gear in the UltraFlash can handle 2S LiPo, so there is no regulator in it. There is no regulator in the LGC 15. There is one in the T-'s JP controller. Castle creations make a great 10 Amp regulator.
Basically, I set the first one all up on the bench and played for a day to figure out the programming. Once past that, the second one only took about 20 minutes to program.