"Scale" couplers for HO Roundhouse Oldtime Freight Cars

I have a “what I did” about putting smaller more “scalish” couplers on
the new HO Roundhouse freight cars at:

http://www.pacificcoastairlinerr.com/1905/freight_couplers/

Thank you if you visit
Harold

I have Kadee #710 and #711 ‘old time’ couplers on MY ‘Oldtime’ cars.

Not that there aren’t other meritorious approaches … but to quote engineering terminology. it’s about ‘form, fit. and function’.

http://www.kadee.com/htmbord/page63.htm

I have used the #711 also. I find they don’t look like a prototype coupler.