Here is a SMMH cheat sheet I made for myself since I have trouble remembering all the alternate functions of the knobs. I keep a copy next to my pedalboard for easy access.

SMMH cheat sheet:
https://docs.google.com/open?id=0Bwo1z0vamEfzODlkMGQ2YmQtMjU5Ny00NzIwLTlmMzktOTQ0YzY3YTQyOTFi

FYI –
the numbers in parenthesis are to remind me to reset them before starting that mode …
For the Loop mode, I set REPEATS to full clockwise (100), to ensure the playback volume of the tracks are equal after overdubs; and DELAY to noon (50) so I can speed up/slow down the loop. For the Rev. Echo mode, I set DECAY full counter-clockwise (0) so it only has one voice (suggested EH setting).