I don't recall, but I think BST could stand farther away. I know they could stand a little farther back because they had to be in range of pet, not the enemy. I just can't recall just how far Readies could be used from (last time I played BST was aby besides a few weeks of renewed interest--something to gain-exp on).
Til the recent changes, one of the problems I had with balance is that SCH and BLMs could idle -50% DT and bust out megaton-sized nukes by flipping gear for a second. Melee were frequently struggling to stand near the boss and hit the boss. The AGI changes have helped that some.
RNG and COR weren't quite so priveleged. You had to meet the same acc demands as melee (easier for RNG) and wanted useful traits like Store TP.
