It IS possible to make Royal Satchels faster as well though... Haven't found a really good mote of harmony farming profile as of yet though. Need to set something up for isle of thunder. Would be sweet to set up three man group, tank, dps, heal and rock'n'roll Isle of Thunder for motes, that way you can prdouce loads of imperial silk, and make satchels, they still sell for ~3k...
Hmmm... that might be worth looking into.
