I like it so far, sounds goods and the app is great. One thing I have run into is that I tried using my variax without the battery and although it got signal, it would not turn on modeler. I could turn on manually and it is powered, but it would not switch models when using the Firehawk. Anybody else experience this or tried without battery. I did this b/c I need to know if my battery is dead, I could finish a gig. Also I am noticing some artifact when switching some of the patches, don't know if that's normal or not. Thanks!