My wife is a professional dog trainer and has been for 20+ years. We've both participated in dog sports off and on over that time. We started in Schutzhund in the 90's with a Doberman (Bred by Cindy Rhodes who is now the kennel manager at Leerburg), but our breed of choice is the Boxer, so we get the up-turned nose at pretty much every club we've gone to. We've dabbled in French Ring and, most recently, PSA.
We've trained with some Schutzhund legends (multi world team competitors and world winners), but even they gave us the side eye when they heard Boxer... until they saw the dogs. We went to check out Dean Calderon's (Google him) club a while back. We spent an hour listening to him talk about IPO/GSD this and IPO/GSD that, and how he'd never seen a Boxer that could compete. My wife was pissed, and we almost just left, but I asked him if we could get our dog out for him to evaluate. After a short bitework session, he said, "I can definitely work with that." We left and haven't been back since.
My wife and I attended a PSA seminar last year by Girard Bradshaw, the founder of PSA. We've decided that PSA is the sport for us. It's more "realistic" than the other sports and requires more of the dog because they have to work in both prey and defensive drive. There is no tracking in PSA, but that's the trade-off. My wife is planning to get a PDC on her current dog (4-year-old female Boxer from French IPO/FR lines) in August.
We drive 1h 45m one way to do bitework sessions with a PSA certified decoy every week. We meet in a club setting, but we pay per session. Our group has GSDs, Dobes, Mals and Boxers in it, and they're being trained for all different sports. Our decoy is versatile and he has titled IPO and PSA dogs himself, so he knows what is required for teach different sport and tailors the training to the dog and handler.
I just wired the final payment today for my new dog. I'm getting a fawn male Boxer pup from IPO title parents, from a working kennel in the Czech Republic. He's only 3 weeks old, so it'll still be a while before he arrives. He'll be a PSA dog from the start, though.