Originally Posted by
Sadinar
Actually, using a volcanic pre-pot is a decent idea for domo, if you start off during slashes. If you time your volcanic right before the pull, with the little damage and judging thrice before the first slash, you can boost your mana up by about 15k. If timed right, you can cast HR right before your volcanic wears off, thus getting a "free" HR using the excess mana gained from the volcanic, as the volcanic should wear off within 2 seconds(before or after) the first slash. With HR costing ~9k mana, pre-potting a volcanic nets you a free mana pot, basically.
That said, you're absolutely right about pre-potting when having excessive healers or excessive gear for a fight, but it can still provide extra mana.