it was hard to drive front gear if used to front spool... it will take some times to drive front gear smoothly... compare to spool, gear tend to spin the car... frankly say, untill now i still not get the max speed for some corners... but at overall infield, gear is faster than spool... of course out of corner, spool is more on power (very obvious)...
for now i am comfort with 300k oil compare 500k... although 500k better at on power... 300k give me more steering (easier to turn the car)
if u want an easy n relax driving... spool is the answer...