This is from a fresh install on a 1 month old computer, first time using RB and I've never added any effects anywhere. Mac, I'm not sure what you mean by "Check your soundcard's recording settings, for instance, having it set to a "What U Hear" or "Stereo Mix" Setting could indeed be routing the output back to input internally and creating a feedback loop, essentially recording it twice or more, each time at lower amplitude" but this happens before 'Recording'. As soon as I play it back after generating the RT guitar picking, it sounds distorted.

Cavemann