[mperich]

The situation is TONS different. I think the main difference here would be what your opponent is expecting you to do. In hand the a5 hand he probably wants a call, since ur hand is pretty transparent (your hand range is small and he knows this, thus it's easier to figure out his hand range based on what you know he knows)

In this hand your hand range is very wide. This in turn makes his range a lot larger so there are more options. There are tons of hands you cant call down with here and he knows that, so his bluffing frequency is much larger. I'd say I on the turn im calling 75 folding 25, and then if he fires the river I am probably folding maybe 20% of the time. I think in a vacuum I fold the river more, but since metagame counts I don't.

I like this series tstone keep em coming.

-Mike