I've been looking for a large paddle to shift up & down to replace the up/down shift buttons on the steering wheel, the buttons work ok but are a bit small and can be hard to hit at times.
I ended up having a go at making my own.
The buttons only need a push of a couple of mm's and I figured their was enough flex in 2mm thick carbon to push them in.
I have it set, pull to shift up and push to change down.
Seems to work well although you dont get the 'click' when changing gear, good test will be at Snetterton on Thursday