Just ordered the Helix LT but I'm having them hold it until 7/8 when I get back from traveling so it's not sitting on my front porch. I currently have the M13 but will be selling that soon. I'm also going to sell my Vox Valvetronix AD120VT as I never play it and only kept around as a backup (more on this below). My plan is to setup the Helix in 4CM and use it mainly for the effects, however, I've been reading that using a preamp block and running the Helix directly to the amp effects loop return yields some great results. I'll play around with to see what I like better. Finally, I plan to add an amp and cab blocks to each of my presets, but then bypass them. This way if I decide to go straight into the PA for example, all I have to do is enable the amp and cab blocks and I'm ready to go. This will be my backup plan which allows me to sell the Vox. I'll update once I get the Helix and play around with it for a while.