I am curious how this is going to turn out. Sub'd!
Sorry I can not offer help on this topic. Well, I do own the VOX Timemachine (delay) and it offers a dry and wet output, essentially it was designed to act like a stereo delay. So when it was bypassed it did the same thing as your Micro POG, sent the dry dignal to both amps.
My suggestion would be to look into a mute switch of sorts to put between the Micro POG and the guitar amp and leave the POG on all the time. Turn the mute switch off to use the POG.
Something like this?: http://www.loop-master.com/kill-swit...ion-p-298.html
Only "problem" would be that your would be playing with a buffered signal the whole time. Unless you want to tap twice to use the guitar amp.