I have a 29 lock, wonder if he counts?
But on the other hand I have faught many locks, and warjus and hell every class, them Lightning rings make a big impact if the target is also useing tfb or arcane accell, Atk speed imo is a
very powerfull stat, and should not be easily available from a quest item.
Ds rings in syrtis are also very good paired up, Im not sure of the stats on the als equivalent.