ok guys ive got a ? about gear ratio ok so we run on two tracks here locally there both close to same size which is very small one is little longer than the other but has tighter corners both tracks are built out of good clay and hook up really well they stay wet all day on raceday now but in summer they get dry and sometimes black over ok so we have always run grooved tires and they work really well but ive recently bought a new kart and set it up on slicks because there are lots of tracks close that have big money races my question is when switching from grooved to slicks how much will I have to change my gear ratio currently on grooved I run a 9 tooth clutch and 72 rear gear which gives me a 8.00 final ratio and I know the slicks are around 4 or 5 inchs smaller in diameter than the grooves so what gear do I need to switch to I talked to a guy and he said to put 11 clutch and 68 rear which gives me 6.18 final just wanting to get other opinions any would b greatly appreciated and these are gonna b run on same small tracks