I was prepared for having the guitar fairly prominent in the drummer's monitor ( even if it means running a second, small amp for him to use as he wishes.)
That's how I thought it would work; he plays the tempo, I play the guitar riff to match and then loop it; he continues to hear the loop in his drum "monitor" and keeps locked to that. As long as I can get the hang of hitting the footswitch just right all should be swell ? . . . no?
Thanks for all the replies so far fellas. I've learnt more here in a few posts than I had in all the time I've spent in stores and on product websites.