I had the chance to enter Syncopia SL last night, but missed it ...
Here´s what I did (was not able to replicate it afterwards, though):
1. 3 or 4 goes at Zone at Tech De Ra REV, using Triakis.
2. Checked my score globally + Friends records.
3. Went to the menu-screen.
4. Checked the Leaderboards.
5. Back to the menu-screen.
6. Went to smoke a cigaret (maybe not very important!)
7. When I got back, I had to press the x-button to "get rid" of the pause-screen.
8. Then I went to Speed Lap (Rapier) to have a go at Tech De Ra REV: And it said Syncopia (where TDR REV was supposed to be)! I got a little confused, not thinking about the glitch, and entered TDR FW - immediately recognizing, I had "missed my chance"
Tried desperately to make it happen again, but with no luck.
EDIT! A Wipeout-friend asked me to elaborate a bit on the circumstances of (almost) getting to Syncopia. To replicate the glitch, I find it very important to get as much details as possible, so here´s a brainstorm (some input might be important, some might not, but if we collect enough data, we might be able to be speedlapping at Syncopia when ever we want!):
a) A DVD in the PS3-drive (Scooby-Doo if you really want to know!)
b) No USB devices connected - except the chord for the controller, which was not connected to the controller.
c) I started out doing Phantom Speed Laps and Time Trials at TDR REV (different ships), then Rapier SL and TL at TDR REV (Icaras+), then having 3 or 4 goes at Zone at TDR REV (Triakis). After that the possibility to enter Syncopia (see above).
d) I started out with Auto Assist turned ON (a left over from my son playing earlier! Lol). Turned it OFF, when starting my own sessions.
e) Games played before "almost going to Syncopia": Wipeout HD, some Mod Racing Nation Demo, Tekken 5, then I took over to play some Wipeout.
f) The PS3 had been turned on for several hours that day.
g) I´m "always on" (wireless) - I can´t say if I - without my knowledge - was disconnected from PSN at any time (I sometimes do, but not very often).