I will chime in here, if MTH does the F units in Milw. Rd. I would probably find myself purchasing another operating system, hope Legacy and DCS can play well together. As far as delays go I remember the delay in the P.E. by Lionel, these did not all come as good running sets after 3 yrs delay, but the majority did operate well although, maybe[ no most likely], needing some owner tweaking. I would rather wait and get some fine running equipment than purchase a $400.00 locomotive and end up having to pull electronics that do not work as expected.
Looks to me that I will have time to sock some money away to purchase the DCS and Milw. Rd. locomotives, I'm starting now.
Ray