I know I lack a little in the melee department using only a three, but 9 times out of 10 I back away from melee combat and force a gunfight because that's a stronger form of combat for me. Sometimes melee is unavoidable though. The only time I have noticed a 3 being to slow is when you try to jump down on somebody and they run under you and you have to completely 180. That's the only time I've actually felt at a disadvantage with a 3.