61 definitely comes under the Choa Chu Kang-Bukit Panjang Bus
Package because the job interview for Bulim failed.
117 definitely comes under the Sengkang-Hougang Bus Package
because the job interview for Loyang failed.
2 is just a route from Changi Village to New Bridge Road and is
operated by Go-Ahead. Only 29, 59 and 109 are just SBS Transit
routes, all because they come from neighbouring towns (Bishan,
Tampines & Serangoon).
It is better if 109 were under Loyang, 136 were under Seletar
and 24 were under Serangoon contracts as it saves dead mileage.
By the same logic, 96 and Clementi feeders should be in Clementi
contract while 99 and 174 should be in Bulim.
61 is better off in Bulim too, as mentioned earlier.
169 and 825 should be in Seletar while 851 and 852 are more
suitable for Sembawang contract.
55 should be in Bedok contract while 100 should be in Serangoon
and 196 in Clementi.