I added a really useful and fun component to my MAX/MSP looping rig, and wanted to see if anyone else was doing the same with your systems.
Basically, I added some signal re-routing code so that with a click of a button, the sound in my looper's buffer is re-routed back into my effect signal chain, so that I can do post-loop signal processing and manipulation. For example, let's say I lay down a few loops with some basic effects. I hit the re-route button, set my instrument down, and then I can just sit back and use my effects as instruments to manipulate the loop output, playing with parameters with my MIDI controller pedals, etc. I can also continue adding loops (effected loops of the original loops), or loop my live voice or instrument at the same time. I also added a section in my rig so that I can add any recorded wav file to my mix with a click of a button.
Anyway, I'm having loads of fun with the changes to my system, especially with be able to play wav files. I can record a catalogue of wav files with my uneffected voice or instrument, and then use it a raw content for looping fun on the airplane, hotel room, etc.
Here's how the system looks now.