1/8 car is more stable than 1/10th car. any how u do it, its still fast because of the grip. its just the matter of the drivers hand
if u're into hi-speed drift ep, then 1 way front with a spool like rear will better all rounder,at least for me. it'll be be easier to turn on hair pins it'll loose rear traction more on low speed and understeer on throttle response at hi-speed section. there's always possibility of spin out with this set up. but u can further refine it with chassis setups. to cope with this setups, experiment with softer rear spring, higher shock oil front and a higher gear ratio.
hope this helps.