OK, as the title implies, I am wanting to jump on the midi wagon and use my HD500 to control a few auxiliary effects units I have running through my FX loop of my HD500. My question is probably basic, but how in the world do I do that? I know nothing about midi programming, but learn rather quickly if there is a resource out there that would help. What I am wanting to do seems simple to me, but may not be in reality. I have a Pitchfactor, Adrenalin3 and Big Sky that all have programmable presets. I want to be able to use the HD500 so that when I change my HD presets, it will also trigger any of the other pedals presets as well. Would save me from having to remember(A) and tap dancing(B) more than. I need to. I am guessing I run a midi out cable from the HD and then chain all the auxiliary pedal together from there. At that point, I am lost on the rest. Is there anyone who can offer a hand or tell me where to go to be able to read up on how to do it?