I have an EB410 and I am having chassis slapping problems when I jump off a ramp I made thats 7" tall. I heard thats kind of tall but thats what I got. So I have the stock yellow springs. Someone told me to get 55wt in the front and 40wt in the back with the red springs on front and rear which are the firmest for the EB410. What do you guys think about that information I got?