I'm interested in purchasing a looper, but much of the music I play strays from 4/4. I'm specifically interested in odd and mixed meter layering. So far I'm considering any looper that has multiple tracks, and leaning towards a used Gibson Echoplex or an EHX 2880. Before I start reading the manuals for all these complicated units, I figured I'd ask here if anyone has any experience with looping in odd meters or looping in different meters per track, and if they have any suggestions. Thanks!