Hi , if you have no prob with connecting and adjusting your arm and you can handle it, and also if you have no problem with the range space area working with your xARM , the xBONE will not feel any better and will add additional weight that might not be something you like at all times. The xARM is a beast and can take the different positioning forces with out problem, and you are working with the lightest possible configuration. I designed the xBONE so that one can adjust tilt tooless and to be able to reach the adjustments and have the correct space area range to work around different moves, other than that , I think if you are happy with your set up and overcome those probs, thats all it matters and you dont need to add anything, unless you feel limited in any kind of moves. The first proto of the xBONE was just a small back mount arm that pretty much did what you are doing, but only had the twist knob adjustment to do this easier, and I found it working well for me, but others with bigger body size didnt and felt limited, so it all depends on many factors , and operating style for every individual. Thank you.