I've only owned my Helix for a week, so bear with me if I'm missing something. My original intent was to use it for studio recording with my Variax Standard, and that's working out splendidly. I couldn't be happier. I also play solo gigs, but use a large variety of instruments (eg., acoustic guitar, variax guitar (with Boomerang looper), sax, blues harp, percussion, etc. ..... all with effects for spice). I use a Behringer XR12 mixer because its versatile and has nice built-in DSP effects. And its MIDI controllable while I'm playing (yeah, I'm the roadie and sound guy, too). After loving the vocal and guitar effects so much in the Helix, I decided to try setting up the Helix to possibly replace the XR mixer (with the Helix used more like a rack Helix, controlled entirely by MIDI faders, knobs, and a couple of small foot switches). I got pretty far, because I had enough inputs after including fx loop returns. But I quickly discovered that changing patches (to change instrument and vocal effects for different songs) would wipe out my current "mix balance". Thats because my setup included MIDI faders assigned to output block levels, and gain block levels (one for each instrument in the mix), and these would default to the settings saved in the patches, without using the current levels. So, I've resorted to trying a setup with the Helix AND the XR mixer, which will certainly work. But I like to minimalize my equipment count and weight, and don't through multiple A/D and D/A conversions. I wish I could do it all with the Helix. It seems I could if the Helix had some sort of option to buffer and pass gain settings between patches, especially when using identical gain or output blocks between the patches. In essence, the settings would be shared (or global) between patches. I could find no way to do this, but if it was achievable I think it would broaden the market. Yeah, I realize this usage does not fit the target audience, but huge secondary markets are a good thing! Or .., if someone has ideas that would allow me to do what I want, I'm all ears.