That doesn't work if you're in a 10 minute time limit BC like the 95 cap fight.
If you haven't beaten him in 5 minutes of fighting it's probably because you wiped anyway
The BST method relies on having the BST tank him while you whittle him down before using the tail, if you only have one tail.
Before the tail was implemented, a multi BST strategy relied on people sacrificing pets and using CB for a fresh tank midway. That's how everyone in my LS got through since we didn't have four people with MNK and a spare Alex SMN (but we had five BSTs!)
Anyway, most BSTs learned the hard way to not waste a jug outside of the BC since it's money down the drain.
Is the 95 cap fight soloable by BST now with the tail? Only time I have done the fight is the first week it was released, pre-tail. I'm leveling a new character now, and if BST can solo it that is good news.