Suspect that:
SBS6181Y should be 195 instead of 16. Have seen it on 195 very
often.
SBS6228Y might be perm 123 instead.
Uh yeah, I spotted 6181Y last Friday PM Peak too on 195. But is
the ad contract for Sv 16 or Sv 195? It got the ad while still perm
16 cause there's the Kip Mcgrath Centres at Bedok & Tiong Bahru
at least, but even if its perm 195, the ad contract still fulfils
cause it passes by Tiong Bahru.