I play 4-5 when going precision or distance....10 for when I'm feeling frisky and wanna get up close via shotty or playing Titan. Mostly only try hard for trials (been on a bad luck streak for past couple maps, since they were new to me)...but kd is around 1.6 for control....since i play that most. Other maps i usually just play for the daily and screw around with new wpn setups. The difference between 1 and 10 isn't huge though like others have said. If you slowly move the stick...there's not much of a dif. You can sense it more when running or sharply turning.