Chainsaw Repair

Racing 3cubes  my hands were to heavy for 8T even though 1 cut testing showed faster. Med sized saws 9 was faster in 1 cut but would run a 8 because of my heavy hands too. Other bigger saws I was faster with 10-11 in 1 cut, but would run a 9.   Talking 3 cuts where adrenalin takes over and not being so good at controlling it and pull the saw down.  I seen guys run saws with gears I could never think about trying. Oh chains set up for such too.