Someone somewhere on this forum asked about tenders behind Southern Pacific steam switchers (not being able to find the posting is a casuality of the almost uniquely unhelpful way this forum is set up compared to most others)
Anyway for the benefit of the poster, who had speculated that all Southern Pacific steam switchers used “curved” i.e., Vanderbilt tenders (some might also have used “haystack” tenders I suppose), please be aware that the Model Die Casting HO scale 0-6-0 is a Southern Pacific prototype (Class S-9 I think but don’t hold me to that) and it has a regular small slope back tender. Also the July 1961 MR has plans for an SP Class S-5 0-6-0 and both the plans and the photos show slope backed tenders (oil bunkers) and one photo shows a conventional box type tender, also oil bunker.
The MDC kit by the way has to be one of the oldest products still available as much of it is unchanged from the late 1940s and perhaps before. When it was new it was considered super detailed!
Dave Nelson