There is an inherent flaw in aggression factor which is if a person only raises or folds, there AF will be huge. He could raise once and fold 20 times and have a huge AF if he doesn't call.
If you use Poker Ace Hud (like I do), they created a new stat just for pokerace called Aggression Frequency. This is much more telling of a players true aggression level. It's not in PT though as its derived.
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