One of Hornby's R3638, WC No 34019 Bideford, arrived at my door yesterday, and has the swivelling/flanged wheel rear pony truck.
After many years (10-12?) of 'fixed pony truck with flangeless wheel' approach on pacifics, is this now to become a general feature on other 4-6-2's in the range?
I must say this is to my personal preference.
Overall though the approach used by Bachmann on their A1's -of a fixed rear bogie sideframe with the wheel turning within it, seems to have the best of both worlds.