I witnessed one in Hougang. I was in a B9TL = SBS7478 and it was
competing with a VSO = SBS9834C after Compasss point busstop. Wah!
The B9TL faster but got more pax then VSO. VSO only have 3 pax.
B9TL got about 20-40 pax.
The VSO won. HAIL for SBS9834C 