Time Piece Farming VS Leeching

I found 16 PoT at O2 with one 4 hour 2x drop card. That's pretty darn good if yeh ask me. Plus, its not like PoT is the ONLY thing you find at TT. with double drop, you're bound to get some equipments and scrolls, too.

And don't forget skillbooks, though half of them are probably junk.