What does it say about a villain if he has a high Aggression Frequency but a low Aggression Factor? Ditto w/ the opposite -- a low Agr Freq and a high Agr Factor? I never quite know what to make of them or what to expect from them. What does it mean (not technically, strategically I mean)? How would you play against them?

I just dug around in my database and here are a two common examples (the accompanying VPIP & PFR #'s seems to correlate often w/ each type, btw):

Villain A: VPIP 35 / PFR 20 / Agr Freq 65 / Agr Factor 2.2.
Villain B: VPIP 15 / PFR 10 / Agr Freq 30 / Agr Factor 5.0.

Btw, for the newbies out there (like me!):
Arg Freq = (bets + raises) / (all bets + raises + calls + folds).
Agr Factor = (bets + raises) / call.