Thank you mcfizzle. Sorry for only posting now, but went straight to bed after qualifying.
Actually that lap was probably my 10th overall lap driving the Citröen in SPa (just made the swap from the 908, on Pipi's suggestion), as I had my time consumed with ALMS friday night and a 2h/50 lapper GT race at Spa last night.
All this meant I had to qualify at 6am local time. At least everything came together when it mattered (rare thing when it comes to my driving

).
PS: My time still isn't on the board (unless last minute change I'm unaware, I've place 3rd in GTE class 👍)