I have an idea (for some time now, actually) that wouldn't actually effect the quality of Very VERY good THFs, but could help along those that either don't have perfect timing nor apps that keep good track of SA and TA.
I think SA and TA should get one charge, at first it seems broken to be able to SA and then SA again, but overall, fighting second by second never stopping, it still comes down to just doing one SA or TA per minute, nothing more.
Where does this help THFs? Well, we lose precious seconds from human error and lag, and positioning. If we have just ONE charge on each, we could take full advantage of meriting SA or TA, and wouldn't have to worry about postponing SA or TAWS by 5 seconds for some reason (Skill chain, positioning, mob almost dead, whatever).
It'll also help the lesser THFs who don't have perfect timing (and who does?) to still keep optimum one-SA-per-minute (or TA), but it also won't really make THF much more powerful, just able to exploit fully.
What do you think? Probably won't happen, but, I didn't think they'd ever add a charge system, and then along came SCH and COR's updates, I guess my idea got through SOMEhow.