Rusty:
Good to know about the KD O couplers ability to be used with the AF line. Will have to try this one.
Roger
When I first go into "S", I was troubled by the size of the AF couplers, so I swapped out the originals for KD O scale. They looked much better, mated just fine with the AF's,and gave that "KD reliability" that we all know and love.
Since then, I have begun to focus on moving to scale "S", and am now using a mix of KD #802s and various KD HO scale couplers. The nice thing about the HO line is there are SO many variations to choose from; you can always find something that will fit!
I'm hoping that the Sargent Line will be able to produce their S scale version someday, as it's far and away the most realistic miniature I've seen (after the Clouser-designed O scale coupler that Protocraft is currently marketing....)
Mark in Oregon