Hi Tail Low,
I did a quick tech stop(topped up the tanks only) in Clark/ RPLC a little while ago; very easy but they did want to see our passports, no face to face for everybody just 1 pilot, which slowed us down a little. However, it was still under 60 minutes from wheels down to wheels up, the taxiing was the slowest part of it all as the FBO is a fair way from the runway and they had the fuel truck ready and waiting, very efficient.
We used the Universal agent, can't think of the name at the moment.
Hope that helps.
Seaeagle109