Be sure to turn on the "per preset" setting on the Helix. Be aware that when you save a tone ir records whatever volume that the Variax is on. So when you return to that preset the volume will be at that level until you move the volume knob on the Variax. The Variax knobs can be use to control ANY parameter on the Helix or ANY device hooked to the Helix via midi!!!! Get a VDI cable. It powers the Variax and allows you to use the modeled sounds and the magnetic pickups at the same time! Here's the one I purchased: On the Helix you can process those signals completely separate!