Further tests of the 50-200WR showed the lens to be worth keeping, so my DAL 55-300 has a new home. Tests between this lens and my DA 55-300 at 200mm are close enough, and thanks to its size I could hold the WR lens more still which always helps images!
I took this shot at my local park; exposure was correct, but in software I liked it more as I turned down the light.