Wow, some of the ones I've visited are on the list! I can vouch for Jess.Lis.Lee, she's got a very awesome ass. So does Yuki. If you can get your hands on Jess, I would do so before she leaves at the end of the month. As for Yuki, regularly check out Dragon or Sasa to see if she's there. If not, there may be some other nice gals that have a great ass at either location.
No, this Yuki is different (although her ass isn't that far behind as I've tried her before), as the person mentioned earlier, Yuki at Sasa spa. She also works alternating days at Dragon spa. I've visited her a few times at both locations.






