Radatats, Thanks for your reply. Jeez i'm a moron. I meant L6 link NOT USB. I'll check your link and see if i can do trhis right. I get that patches are going to sound different going through DT50 and QSC and mains. But it's just SO different that I thought i'd ask you guys.
Based on your reply and without checking the link i'm wondering if i'm not "blanking out" the DT50 before loading voicing, channel, class and there is still an amp and cab being applied on top of my amp and cab(s) sent from the Helix patch.
I'm not sittingf in front of the amp right now but when i set up a patch i go into the midi section and set up channel a, class a, pentode, voicing via midi commands. I don't send any of the commands that select "none" for amp or cabinet.
Maybe i'll try the dual path method you describe.
This whole thing sure works easier on my HD500X . I didn't want to have to think this hard!
Carl