The R16's are meant to be daysie chained (via USB) though Zoom warns that there is a 1 to 2mS delay! I'm aware of the problems that may arise when layering track by track, but isn't that what is normally done in studios? We're recording in our rehearsal room and have too much bleed through to be able to rerecord a single track! The old track cannot be totally erased because it bled through the other tracks!

Strat