Me too Neil, but I'm finding it complicated. I have been looking at this type
http://www.ducationly.com.au/sp_quickshifter.html I dont know where you can get this type from in the UK
I've also been directed to the HM type that work on you giving the gear lever some slight pressure with your foot whilst full throttle( dont know if they work for 996 ? )
Anyway keep me in the loop Neil
Craig