janovsky: 3-barrelling means when you c-bet the flop, the turn and the river. Boom, boom, boom.
I think c9 makes good points, but I'm not sure I agree that it's obviously OOP. For those who are interested in compiling some results, run the following filter in HEM:
Find a large sample of hands.
Select position = button
In Other Filters, select "River Continuation Bet Possible", and refresh. Note the number of hands. Add, from Other Filters, "River Continuation Bet Made" and calculate the percentage.
Do the same with position = small blind.
EDIT: Actually, use the Position report (from the reports list) and you don't need to fiddle around with small blind/button.
Post findings here, please. Mine are both roughly 50% for 2009 (although sample size is a serious issue here).
I have a couple of things I'm interested in regarding this, not the least of what the hand distribution is like in vs. out of position. Is it more polarized OOP for thinking players? This is good to know when it comes to playing bluff-catching hands in vs. out of position, i.e. should we be more or less willing to call down with 99 vs. a regular in or out of position if we know he's aggressive? Intuitively, I say in position but it's possible I just think that because I always prefer to be in position in general.