Al, no doubt. I'd love to see Kadee offer the upper and lower shelf couplers. With most unit commodity cars going to a lower shelf coupler, and all the great tank cars out there, would be awesome to have them. :-)
The Protocraft coupler would be Norm at Protocraft (http://protocraft48.com)
Yeah, it's funny when we first started to take the 2R portable around to shows, many would ask us what scale this is? 2R O Scale, I've never heard of that???
We need to keep it relevant, keep it front an center at train shows with quality layouts showcasing the fine O Scale equipment we have!