Re-posting from other thread as it seems more appropriate.

I found I am much more likely to get extras (serious fuck her while the massage table is rocking loudly and everyone hears extras) from Thai girls if they work as ML.
Young Korean girls look nice but isn't worth the risk as 2/3 have bad attitudes.
Korean Milfs who work ML tend to be wild as fuck, the total opposite of their younger counterparts, very in enthusiastic, and offer really great service and some light-extras are usually on the table.
Japanese girls are all sweetness. Even if they are not a great fuck they have lovely personalities.
Japanese Milfs similar to Korean in service but a little less wild.
Chinese girls can go any number or ways, but when they excel it tends to be more in part one than part 2. Extras are not super common.
Chinese milfs are more or less the same as younger when it comes to massage but they have been trained in secret handjob techniques in hidden mountain temples. Honestly, no one can pull you off and leave you shuddering even after you leave the shop like a Chinese milf. You don't wanna see them naked tho!