Serpent Driver Ryan Johnson developed an alternative set-up for the Cobra Buggy, which for him, worked very well.

Below the specifics, feel free to try !

His full set-up is here:
http://serpent.com/product/600007/setups/

Front spring was Serpent RED# 600353

Shock pistons conical 6 hole (4) (#600349)
Front piston conical 6 hole drilled as described
6 x 1.4mm

Rear piston conical 6 hole drilled
3holes x 1.2 and 3holes x 1.35

Piston mounted upside down conical side up.

Used 1st version wing, which is better for high speed turn: Wing white nylon (#600143)

Used Truggy front caster blocks 12 deg
C-Hub truggy 12 L+R (#600373)

and Truggy rear uprights. Upright truggy L+R (#600418)

Enjoy !
Team Serpent