Jay, a lot of people understandably want everything when they go out on a Nomad charter but that isn't really realistic. If conditions and tides are right and everything falls into place, Nomad will get you onto some amazingly hot action but it isn't like the fish out there never stop biting. I've had some very quiet sessions in the past which have been offset by the odd amazing session.
There are locations which are good for GTs and locations which are good for doggies and then locations where you have a chance of a wide range of fish but to want to go on a charter with the expectation of catching GTs, doggies, wahoo, yellowfin, and even marlin, I'm not sure I am game to make a recommendation.