Don't think there's much to it. The mobs are somewhere around level 92-97 or so. So it's like killing high-end Easy Prey and Decent Challenge mobs. I usually use DipperYuly because he's got THF job. But I never actually farm for currency. During my ventures, it's always been in search of Relic armor.

Not really restricted to BST though. I solo in there as MNK\DNC too.