recommendations: well for an MP i suggested a couple at those locations, and like I said, just massage + HE isn't really the right value choice at an MP.
now there is what we call an AMP (a=asian) where the massage is still the lesser focus and everything is available for a price. lots of those around.
then there is what we are calling the "semi-legit rmt" places - you've visited two of the better known in Nana or LaBella. Primarily asian as well but not completely. Some of these you find working from home as well.
If young is the real request, and a real massage is part of the deal, I would suggest you go to LomiLomi. Yumi is well reviewed, I have seen Miki, who is 24 and small/cute and getting better all the time, and the manager was recently trying to sell me on Fiona (i think), who he put in the same category as those two. So some real young talent there.