I will admit you won't equal the look of the stock couplers, but I'm getting better. My second one is about 1/8" shorter, and not much longer than the stock coupler. I did have to adjust my thinking on the return spring, the stock one was problematic, so I just took some spring wire and made one that contacts the frame to center the coupler. This works better than the stock one anyway.
The whole reason for the electrocouplers is this is a switcher, it's pointless to have one with command that you can't do any switching with! 
Another idea I was toying with is lopping the mount off the stock couplers and grafting it onto the 1.44" couplers for the Trackmobile. In looking, I don't think that will do much better than my second coupler that I shortened a bit. I may just get another set of the ones I used here and "improve" on the first one. I suppose I could also just hack the extension off and start over as well.
That 1/8" might be the limit, and a great improvement. I could live with that.
