It wasn't recently, but I got mine at the ATP place in the Dallas area---I think at Redbird,
but I can't remember anymore (2000). ATP (at least there) taught the test, taught it well, and knew
the evaluator and what he looked for. Hard to ask for more. I'm sure it's the same at lauderdale.
It's hard to say not to sweat it, but try not to. Just do what you've been doing all along to pass
your various checkrides, and you won't have a problem.