Hi folks. I'm tying to unlock the potential of my Source Audio C4 by accessing all its presets via my new purchase, the Line 6 Helix Effects. The latter has the capability to send out midi PC and CC changes to all midi devices to control them and changes presets....in theory, the two should be compatible, but then there's the annoyances of in between boxes and leads.... I trying to work out the following Q's and wondered if there were any Bassist Midi wizards on here? 1) Whether it is possible to control presets on the C4 via the Helix Effects box? 2) Whether the C4 can even accept PC messages? (some year-old posts on here seem to suggest it can only accept CC messages, which seems really odd) 3) Whether I need to purchase another blumin' box - either the Neuro Hub, or a Disaster Area midi box such as the MicroGhost or similar? 4) Whether I could avoid the box and cable up direct via USB - Helix to the C4 (utilising a mix of USB-B and mini-B adapters and leads)? Obviously, im fast approaching a 1k now for this solution, would LOVE not to make more mistakes on what I need if anyone can help?! I also wish to avoid taking C4 usb into my laptop as I run various synths and devices through there and Ableton for a live set up and it creates really bad ground noise making it an unviable way to route midi and use PC messages. Many thanks for your help!