I had a blast on a 29er, but the bike felt out of school on tech-knar at times. I would never consider crux moves such as skinnies to a wheelie drop etc. Mind you that's 0.5% of the time. I was too high up to feel confident on balance moves. I'm old-school and like that stuff. My build was light, and flexy in the front (fork and wheel), and had a steepish head angle so that all played a role. But I do remember doing some big stuff on my TBLTc. It was a confidence inspiring rig with any little bit of momentum. For slow, hard braking, tacking through a section, not so much.
I felt this way on the earlier 29ers I rode. But in the land of slacker angles, Pikes, 2.35 EVO tires and Flow rims that feeling doesn't really happen the same way. There's also a lot less riding of that type anymore.
I don't ever feel more 'high up' on my 29er. I feel like I'm in the correct spot finally. "In" the bike, as they say.
There's nothing better than an Orangina after cheating death with Digger.