I see this thread has gone pretty far since the last time I visited it.
hedge, you bring up some good points. I am steadily learning that BJJ guys have very good sub defense, and don't make the mistakes commonly seen in judo. it's hard to just explode into armbars when people don't leave their arms hanging out there to be snatched up. in fact I've only landed a few armbars the whole time I've been going (often I'll land some in my first time working with someone, then they kinda figure out that I'm a mistake hunter, and they start being more careful). I have people who I've never worked with saying to me "you're that judo guy huh? I hear I need to be really careful about letting you get into side control because you're impossible to roll." I find it amusing how fast word spreads. but I've been catching people in the "near side" ude garami from kesa gatame pretty frequently, so apparently it's leaving a lasting impression. but your description about switching to a game of steadily removing my opponent's defensive options is spot on.
and to be fair ben, I don't give up my back that much. it's one of those things that I'd do in judo while playing around, sort of to see what my training partners will do with it (put yourself in a bad position so you have to work out of it and learn in the process type thing). and I agree that I need to get out more. if I had top level judo newaza instruction available, I wouldn't need to do BJJ. and yes I am familiar with the other rear chokes, as those are the ones I have far more experience attacking with and defending against. the RNC just becomes far more effective and harder to defend when there's nothing preventing tori from pulling on uke's face to open up the neck. in judo there was zero risk of that. a lot of them seem to enjoy the way I go about choking people that go into the turtle. BJJ has attacks against the turtle as well, but they're nowhere near as explosive, or IMHO as effective as the ones found in judo.
Wdax, you're quite right on all counts.
what I find interesting is how skill levels vary from person to person. last week I choked out a purple belt twice and arm barred him once, then got choked out by a blue belt 10 minutes later. but then again I guess you can see the same thing in judo.
all in all I am enjoying my time there tremendously. and if I didn't already have a lot of my time dedicated to judo classes, I'd be attending practice there more often.
there NYCNewbie, there's more. you happy?