I decided to try this on sunday at Southport after doing a similar thing to the X6 last year. I felt that it took the bumps better and also cornering seemed better too. I could definitely push the car more, the only problem is that the standard 22 shell won't fit so I melted a B44 shell down but I tried another club member's FTW Vane shell on and that fitted nicely so i've ordered one of those. Its definitely worth a try IMHO