I have sold my CT so time for the odds and ends to go as well.
This has been my best thing for sorting the screen buffeting. It attaches to the original screen mounts and you attach your screen to it. The tool-less adjusters mean you can then alter the height and angle of your screen easily.
http://palmerproducts.co.uk/It works well with the standard screen but I found it perfect for me with the MRA screen (also for sale), any speed visor up.
It has the accessory bar which is perfect for a GPS mount; solid and right in the eye-line just above the instruments.
Pre-2016 models only.
£35 plus postage or pickup in North Wales if you are passing
I list plus postage so that I can do it whatever way you want and will combine postage if you buy more than one item.