Racing 1/8 Buggy on 3s

[pumpkinfish]

Does anyone race their 1/8 buggy on 3s? If so, what capacity packs, motor and general run time are you seeing? My friend and i were discussing setups and he asked why I am running 4s. He said it looks like I have a lot of wheelspin on our dusty track and was wondering if the 3s setup would help. Sorry if this has been discussed before. Since I am now shopping for a new motor, I was thinking now may be the time to try something new.