My daughter and I have a slash 6808 with big bores.Did a search for springs for bashing and can't find it again. They recomended losi blue rear black front. WOW what a difference, have 45W oil front and rear. made the change a week ago but due to weather haven't been able to test but ran it in the parking lot today jumping speed bumps. As a noob its unreal how just springs and oil can make SUCH a difference. Thanks to who ever I can't remember.