With the AMPLIFi, I use a patch approach and organize my patches accordingly: e.g., a bank with 1) clean, 2) clean with effects, 3) crunch, 4) dist. Bank up / down to get a different set of sounds, with some variations, organized in the same order... at least using my FX100.
Still trying to find out if the Aux in on the 150 is mono or stereo? I'd like to run my FX100 as my modeler into the 150 as just an amp...if the 150 dies, I can go direct with the FX100, if the FX100 dies, I can use the modeling in the 150 (...may need a FBV Express II). Backup with identical patches. :)
My AMPLIFi kit is sounding and working great for me...though I still have GAS for the Helix. Dialing in tones is brain dead easy with the app IMO. Maybe someday a Helix derivative will find its way into the 150 form factor ;)