This is the opposite of what the guys with the new Yokomo BD7 2016 are saying, the shorter shocks have supposedly made the car easier to drive, I can't comment as after lots of frustration driving Yokomo BD7 14&15 I have switched to Xray
only on super high grip they are more easy to drive fast. on medium/low the vbc schocks are beter.
If grip is low long schocks are beter.
Tech tip: if you build your schocks put a 0.2 shim on the white schock piston, and drille the 3 holes to 1.3mm. car will be easier to drive fast. and have the feeling of short shocks.
If you drive outdoor drill the shockcap (1mm) indoor no hole in shockcap