This is my preset using the Zendrive emulation on the Helix. I own an original Hermida Zendrive and it never leaves my board. I think Line 6 did a terrific job with this one. Basically the preset has two main modes, a slightly broken up OD (very versatile) and a lead OD tone. You can hear it by clicking here and here.
Zen - Helix Preset
$3.50Price