I'm assuming by chain pulling you mean pulling 3 mobs, stopping til they're almost dead then moving onto the next group of mobs before they're dead. In that case yes this is a bad way to pull. You're removing all TP/MP regeneration potential between pulls, lowering AoE dps, screwing up people's positionals and placed AoEs. It's not efficient. When you finish your pull you stop and you don't move until everything is dead, doesn't matter if you pull 1 pack of mobs or do 1 big pull, but don't stop and start. It's like walking down the street then stopping abruptly and having everyone behind you walk into the back of you don't be surprised when they start to get annoyed at you for it.