Cool. I did visit your website (as I have before). The 4-4-0 is too small for my taste...but it's cool to see them hitting the 2', 30", and 3' markets. I sure hope they release a Zillertalbahn (Austrian) 0-6-2t...I'd be forced to add some On30 to my layout.
It seems, from searching the web, that you are the only modeler to have attempted to model Miller couplers.
I'm looking into building my own...and if I fail...I'll be using your modified horn-hook style stand ins. Not a bad substitute.
I'll also, probably, be duplicating your integrated link & pin system for operation unless I find Coronado's link & pins to be manageable.
I've looked over both on your website. Thought you'd like to know!
Michael