Just finished up a run of rear bulkheads for this car. They feature a lowered motor position, 1mm raised rear shock position, and will use the standard Associated, IRS, or CRC ride height adjustment pills. We tested these on our local carpet track which is probably medium grip at the moment with 13.5 and this configuration seemed to make the car better. We have also been testing a conversion to dampening tubes to replace the center shock. This does seem to change the feel and handling of he car from the center shock.
This is not in production at this time. If anyone is interested in this, pm or email me and I will gage the interest in this to see if it is viable to produce and what the price would have to be.