Farming ST for lights and upgrade items (sands, oils or unknown allagan tomestone) is possibly the fastest way atm since lots of people are doing it for ninja and alt jobs. Better jump in while it's the current fad. Queue is still longer for dps but it's not bad during prime time and weekends. I suggest daily roulettes and squeeze in as many ST runs as you can while players are farming it right now. It won't last once they get most of the items they want/need. You can also squeeze in some quick low level fates for feeble lights while you are in queue.