I've never seen more geese consistently anywhere else in louisiana than over here. When it comes to hunting them I don't see how any decent guide would be better than another except for who happens to own the land where the geese want to be on that particular day. When they get down here they tend to roost in the same areas for a while and just bounce around a couple miles for food, so they are fairly easy to predict with a little scouting. And you pretty much can't go wrong with an electronic call, it's going to work as long as anything that remotely resembles a flock of geese is on the ground.
I wish I knew some names of services to give you but I'm not sure who does conservation hunts and who doesn't, but if I were you I would look into this area.
The guy who said you can't go wrong with an e-caller must never hunt geese. Snow geese will NOT just come in your spread just because you have a caller cranked up. Snow geese usually hit a field for 2-5 days depending on the size of the flock, size of the field, and how bad they destroy it. If you can catch them when they are using your field, you can kill a pile of them. Other than that, you just put out a big amount of decoys for nothing. The best time to kill snow geese in SWLA is on a foggy morning. If there is a big body close to you and its foggy, you should do well. We have killed limits of specks with a pile of bonus snows and it was over about a dozen speck decoys and 2 or 3 snow decoys. I hunt geese south of Welsh and in Klondike. My dad owns a guide service and just will not do these hunts. People get hyped up for them and they aren't what they are cracked up to be. If you really want to do a conservation hunt, you need to visit a northern state such as Missouri or Arkansas.
With a little scouting you can know where they are going to roost and feed. All you have to do is set up somewhere where they will fly over your spread and turn on an e-caller. Expensive decoys are not necessary with an electronic call. We turn it on sometimes while throwing out rags the day before and they come in to it like a magnet with 10 people walking around the field.
It is very hard to hunt snow geese. I hunt with 600 full body and shell decoys,caller,motion decoys. U name it I got it and I scout everyday and find where they r and I set up. These birds r very smart and hard to trick. I used to hunt with rags and they worked early but once they seen a rag spread and been shot at u can throw the rags in the trash.
I guess they might be a little bit harder than I made it seem. We only hunt them twice a year (once in the split and once after duck season) and they don't see very much pressure from anywhere else around us, so windsocks and a cheap megaphone hooked up to my cell phone usually bring in more geese than my shoulder can handle.
But back to your original question, I talked to someone after I read this who is in to guided hunts and he claims David Smith in Jennings has always gotten them on the birds. Good Luck!
How far are you willing to travel?