Hey Dragon!
Thanks for the response! Here's what we're looking at with the spider v.
1.No fx loop
2.Full range speaker system (10")
3.Amp/Cab sims can be turned off for what would then be a dry signal I'm guessing.
Now that I'm really looking at this thing, I'm thinking in theory it should work. My Helix should be here Saturday. I'll just have to give it a go and I'll update here.
Thanks for your input man!