Hi all!! I'm a new Helix LT user, running into a Seymour Duncan Powerstage 170 into a Mesa 2x12. I have tried so many things to get a good loud and high gain sound and just can't. Preamp models, full amp models, eq blocks,etc, they all sound super glassy and harsh and thin. I've messed with master volume, bias, bias x, amp eq, eq block with no luck. Any thoughts or suggestions are greatly appreciated, before I just give up and return this thing.