Requesting per instructions on the settings thread. I'll post what I've got for my M1RI, but its a work in progress. Would love to get some suggestions.
treble 8-10 mid 2 bass 0-2 volumes on 3-4 presence 7-10 no reverb (though it does sound great)
jumpered effects loop on 10 I boost volume w/ guyatone od.
there is a mk1 reissue mod thread by gil ayan near the last page