We normally have discussions about how to avoid bendies rather than chasing them!
Anyway, I would recommend trying to get one on a Leeds - Hudds stopper. Thrashing through Morley Tunnel from a standing start is rather entertaining.
The Huddersfield to Leeds stopper usually carries on to Selby (it's the train I use most days to get to/from work). Since Christmas it's been a 150 every day - at least for the commuter time of day ones. However you'll normally see at least four or five Pacers at Leeds station at any given time.