[Mandalore93]

The real problem begins once you start hitting level 37 which is where the first mana free charm stops. After that indefinite charming doesn't really become an option since bards don't regen mana like the other classes since we only have a single point in meditate. I'm also pretty sure that our own mana song doesn't affect us but that could be wrong.

After you hit the 40s, I just use charm to further split pulls and add in temporary DPS. The charm isn't by ticks as far as I know, but on a straight 18 sec duration. Generally speaking when I'm twisting while charming to hold a camp I'll do 5 songs then re-charm. If it's a tough camp that has been giving me solid damage then the last song before recharm will be to mes the thing I'm fighting to give myself a little breathing room.

As for server vs client ticks, never really played with it as for the most part you won't be able to set up a perfect twist with the timing, especially if you're taking hits.