Racing takes a lot out of the car and driver
... OOOH but it is great fun
What Diff. oils are you guys running? (Brand and weight...) I run on a fairly tight track with my R40 which is also quite bumpy and I run 50000 Protech Diff. oil in the front and 30000 Protech, (half full) in the rear diff. I just managed to drop my laps by 0.6 seconds and I am very happy
Also, what kind of shocks and shock oils you guys using on your R40s?? I forget what brand I am using but it is 40W rear which is softer than the stock oil it comes with; I use yellow Ho-Bao springs. In front I use 50W oil and the blue HPI springs. My car needs a little bit more tweaking but really hangs with the Mugens and Serpents... I am guessing that the Hara edition will be great.