Hmm. My monk is strength-based anyway, with not much in the way of dex. That might account for it, since my Tumble is rock bottom anyway.
But this is the kind of thing I'm talking about - the description text is kind of vague and could use some clarification as to exactly how it works and what kind of bonus it gives/enhances.
As for the binding dwarven thrower - devs, would it do me any good to bug report it? In other words, CAN it be fixed?