I see. Mine is a bit of a track toy, I couldn't justify spending 2k for Proflex? And it still handles better than probably most other things on a track day, (except the propper stuff, i.e Caterhams, etc!) Infact, I was stuck on the arse of a N/A VX220 at Oulton recently for a good few bends?
£600 well spent IMO. Although driver skill does have a LOT to do with it I guess.