I thought it would be a good idea to collect all the tips people have in one thread. There is a lot of information on DIYMA, but it is getting kind of buried, and people may not have seen it.
This thread is for hints and tips, not for Alpine/Imprint haters - start another thread for that if you must.
Important Tutorial Post from an Alpine Trainer
Source thread for the above with more info
Tips from someone at Audessy at the bottom of the post
Dang's review of the H650 and Imprint, his comments are important, coming from a good tuner
9887 Imprint review thread, very long, much nonsense, but important information is imbedded in it