(18 Oct 2015, 7:56 pm)S813 FVK wrote It ran every 7/8 minutes when GNE had it the first time too. 599 (the yellow solo) was repainted into the Venture livery while the 601 (green) and 602 (blue) remained on the S1 with 600 (orange/red) going onto Watermark service S2 which never really took off and was withdrawn when Classic took over the service.
What was the S2?