Out of curiosity, what would be the benefit of using the Firehawk at your gig as opposed to the 500x? All of the 500x models are in HD whereas only a handful are on the Firehawk, and I'm assuming if you've gigged with it, you've taken the time to dial in your tone.
BTW, I'm not asking to be a jerk, I had the Firehawk but returned it for the 590x over reliability issues. I haven't opened the 500x yet...