I finally got to listen to the Uber cable with my 1+2 last night (I bought lee730's Uber with the proceeds from selling my Kaedes).
It was not quite as thick as I imagined it based on the photos, but I can see why it can be delicate to handle (maintain a bend radius).
Anyways, the sound... OMG. Based on the reviews, I've been predicting the Uber cable is THE "completer" for the 1+2, and it turned out to be exactly that.
Imagine a balanced Uber cable terminated with 2.5mm TRRS plug for the AK240.