Well from my own personal opinions, the girls i have met so far in manila are all great in GFE. Even the girls i picked up in LAC is great.
No barfine and u get to pick and choose and negotiate the prices yourselves.
However if in AC its a totally different system with the barfine.
But then again, GFE is always there and if the girls click well with u most of the times u will get good bonking sessions. Tips wise well i still feel its a personal thing. Sometimes the girls are so passionate and warmth in bed, i really dont see why a slightly heavier tip is not possible,
afterall for my case, if i find a GEM i like, i will definitely ask her to stay the whole duration of my trip there. Dont like to change girls everyday for me.
Just my 2 cents.