[quote="playingdeadThe other really nice feature of the guitar loop, for me, is the ability to have the tuner in your effects chain, kill your guitar volume, switch the loop in and be able to tune. Particularly useful if you go out during a tune.[/quote]
I do this without an effects loop. One of my effects has a "clean out" jack and I run the tuner off of that without sending the output from the tuner anywhere. The tuner is on all the time. All I have to do is kick my volume pedal down and I can tune any time.