You do realise, that the soundguy, if doing his/her job properly, will EQ and compress your tone regardless of what is coming out of the head - making the whole exercise a bit pointless? If you are using other backline, except that you aren't going to get your sound and concentrate on getting on with the gig and trust that the soundguy is gonna make your tone rock out front.
Yes, I know you are going to say, "I want my own tone on stage" - we all do... but the professional thing is just get on with it with minimal faff. No sound guy likes a faffer!