Bendy priority:
300, 302, 307, 800, 811, 812, 902, 913
Bendy or DD:
804, 806, 900, 901, 903, 911, 912
* My opinion is based on loading pattern. Very short distance
high loading bendy better like route 800, 811, 812, 913.
* Route like 900, 901, 903 where pax travel quite few stops
before alighting, DD also okay