There is shift-time learning, goal is set by desired shift
time table and the shift pressure is varied to meet it.
This can result in more, or less line than you think and
will make applied pressure vary with weather and so on.
Most people zero the times and get what they want with
the pressure & adder tables.
There is TCC slip learning, which will bump the TCC PWM
value up if slip exceeds a limit value, or down if it doesn't
slip at all. Again there's not much good that comes of this
(just shaving off some pump load to chase MPG, and get
TCC apply to feel like Grandma's Buick). For any performance
converter you're best off putting min TCC duty to 98% and
max to 99%.