AmeenTrainGuy posted:Well if that is the case then Kadee should start thinking of manufacturing an extra long shank for those with tighter curves. I am guessing 072 would not work out well for a 21" car and the Kadee long shaft the cars would be too close.
Check the thread where Rich Battista posted pics showing his Kadee conversions on the UP Excursion cars. I'm sure his Black Diamond RR has some O-72 curves, and I don't recall him noting any operational problems since there was still a noticeable gap between the cars (which helps on relatively sharp curves).
David