Are you talking about the hot racing or stock? Either way at this small scale for such light crawlers I'd think foam and grease would make it even stiffer going in, not just the rebound. Would be interesting to see if it worked though.Can you tale the shock bodies apart? If so, put a small piece of open cell foam in there then fill the rest with the thickest axle grease you can find. basically your trying to make a constant friction inside. I dont know if these shocks can even be modded.
I personally don't think the Barrage shocks are that bad at all. They are in between the Sumo and Losi for stiffness.
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