Arriva Buses Wales - Rhyl Depot

[Westyorkshirebus]

RE: Arriva Buses Wales - Rhyl Depot
Three observations.

First one, I notice the 1 serves Prestatyn High Street before coming back round to the bus station. A route I don't think has ever had a bus service, not in the last 20 years at least. Is there any reason why this new route has been introduced?

Second one, do buses on the 12 swap boards at Rhyl because if three arrive in close behind each other like is often the case, they all get dumped on the stand and the rear one seems to then often stay around for ages, with other later arrivals jumping the queue and going out first?

Last one, is the 51S still a double deck or now a Max spare?