Yeah I believe you could simply trim the long plug to make it a short type plug.
Just because a switch such as the one you have above can do a better job doesn't mean it's a bad design. It could be argued that technically this is a switch as well, just with the inner workings of a carby mixed amongst it, and a single control to perform multiple functions. In that respect some would say it's more highly refined, performing 2 functions as opposed to just one. With the switch you installed, you still need the throttle. With the throttle/carby/switch, you don't need the switch you installed... Always another way to look at things.
Also when you say better, I'd suggest that it's simply less prone to faults and failures. As a switch that functions at an on/off level, a switch such as the one you installed is more definitive in a way. The throttle/carby switch still has an on/off, just with a higher chance of it not functioning as designed if not maintained, which leaves it at a disadvantage in a way, but again, mostly seen when it's not maintained, so ask... Is it a bad design, are there better switches... Or do people just not maintain things? Perhaps we are the ones who should look in the mirror. It's a throw away world now unfortunately. The result, people don't maintain things break, the product is blamed.
