I'm using my HD500 effects only with FX Loops (no amp modeling) going into my Mesa using the 4CM method. Few issues that I'm having. The tempo tap is making a noise when it blinks through the amp (is this normal, and if so, how to silence the tap tempo). Also, when using the HD500 as a M13, does the noise gate actually work in the traditional sense, or is it only effectlive when using it within the HD500 and amp modeling.