Bud the lower numerical value for gear ratio's will give you more speed at sacrifice of a bit of accelleration/punch. The higher numerical value for gear ratios will give you slower speeds and better/faster accelleration.
With roll out its the other way around ie:
lower numerical roll out value is slower speed and better/faster accelleration
higher numerical roll out value is more speed and a little less accelleration/punch
Hope this is clear.
casterracing EX-1 Pro, SP Silver Arrow
TOP Racing Scythe, SP 17.5, SP GT Pro 2.0
TOP Racing Scythe, SP 4.5 V2, Hobbywing Xerun 120SD 2.0
TOP Racing Scythe, SP 13.5, Hobbywing Xerun 120SD 2.0