Well, the first thing to learn, about bird hunting of any kind, is how to shoot.
I would first suggest that you and your buddy spend a lot of time at the trap range practiceing.
Course... if you guys are all ready good shots, you all ready have done the second thing I would suggest.
and that's ask around. Being on this site will help a lot with all the new guy things to learn.
Sorry, never used any guide service before.
I'm not paying somebody to take me out and not shoot anything, I can do that just fine on my own... lol.
So I have no tip for you there.