Change the Lick Trainers to mini songs.
Many of the trainers, especially for Piano, are gimmick. They should just be a mini song that you can slow down and repeat.
The problem is that, just being able to get a lick correct once, at a slow speed, does not make it so that you have mastered it at that speed. The trainers are also "all or nothing" so if you cannot complete the last section of a trainer, the next time you sit to practice, you have to start back from the beginning, which is a waste of time. You can usually just loop that section of the song. So the trainers tend to be worthless. This is the real problem...there is no value in the way the "Trainers" are used. It is better to just do a section of the song. So either figure out a better type of tool, kill the trainers, or just make them mini - song.