Has anybody had any experience with competitive obedience? I read most of AKC's info on competitive ob., but I'm still wondering if it's the right sport for Ivy and me. She's been a breeze to train so far and, best of all, she's super handler-attentive and loves to please. Because of this, I'd love to get her into a higher level of obedience, but I've been hearing from others that AKC's competitive ob. can be a bit..."stuffy". Any opinions??