I was reviewing the Rys for my own A600 this week and spotted the type of extension/adapter you are using. Does it cause sagging or does the Rys disconnect easily? It looks like it would stick out too far for my liking. I guess cutting the Rys silver casing wouldnt help stability either since it looks nice and heavy.
The best approach would be to use a joystick extension lead instead, the Rys can be cable managed behind your A600 out of the way :-)