T7 to TBIT
 

I'm coming in on a UAX flight from SNA and then connecting to SQ11 (in Raffles!!). It's a two hour layover. I plan to stay in the RCC a while becuase I know the OZ lounge in TBIT ain't that much.

After my visit to the RCC should I walk to TBIT (on departures or arrivals) or take the LAX Shuttle?

If you exit T7 and turn left, it's about a 10-minute walk to the TBIT. If you decide to walk, sty on the upper level--it's less noisy. Of course, if it's really hot or really smoggy you might prefer the bus...but LAX tends to be reasonably temperate even when it's blazing hot further inland.

I personally would take the bus, if you happen to see the A bus coming up the street... it'll just turn back towards T1 and go around again.