The best advice I could give you about your Fun Factor suspension is to get in touch with Dr Honda and buy a pair of his shock towers. Then pick up two pair of 1:8 scale buggy front shocks and a full set of option springs and oils. I am currently running GS Storm Pro front shocks with 40wt oil and white springs on the rear with blue long and red short on the front. This set up combined with the JT chassis is what I will be taking to a few races this year. It handles well on grass and is tough enough to cope with some pretty big jumps, provided you land the right way up!!!