I think I actually follow what you're saying here. I also think you are overthinking it a bit and tying yourself up unnecessarily.
I can't speak for all outfitters, I can only speak for
@JKO HUNTING SAFARIS. Within South Africa we hunt a few different places (and also in other countries btw) that each has it's own specialties Let's say for discussion you come hunt with us at any of those locations. You have a good hunt and after getting back home at some point you decide you want to come back to Africa. But this time it's for a species that isn't in one of the areas we normally hunt.
Let's say that happens to be Blue Duiker, again just for the sake of discussion. One of two possible paths I can see at this point.
The first is you contact us stating your desire to hunt one. The response would be that we don't have those on the properties we normally hunt, however we have in the past had this same scenario. And as such we know of places in the Eastern Cape where you could connect on one. You book with us, and we take you there.
The second path is you do your own research and come back and ask me about an outfitter in the Eastern Cape. Honestly if I know of the outfitter and their reputation is good, I will tell you that. If I've never heard of the outfitter, I'm going to tell you that too. If I know of the outfitter and their reputation is not good......well that's a sticky situation. For me personally I don't think it's kosher to represent one outfitter and to bad mouth another outfitter, even if I think they deserve it. However I would not want to misguide someone either and have them get burned. So my response would be something along the line of yes I know of the outfitter and that would be about all I'd say. I would hope that sends a message of be careful.
Don't outwit yourself here. It can seem like a daunting task picking a good outfit to hunt with. But if you do your research relying on more than just a couple/few hunt reports and ask enough questions, you'll find a good one.