I haven't read anything about it. Hypothetically speaking, it should favor more hit builds, like Dual Wield with OAx weapons. Again, that also depends on if its based on per hit, or a percentage of TP return per hit, or a percentage of damage. Per round or per hit. Yadda yadda. Either way, now I can't think of any reason not to pop it every time its up.
George Carlin wrote:
I think it’s the duty of the comedian to find out where the line is drawn and cross it deliberately.