-WP836E's suck compared to all other batteries-S3 wheels as well (low grip, heavy)-Omni extenders are too heavy as well when you only need a multi extenderOtherwise, not bad.
PS: About the S3 wheels (I know they have low grip that's the reason i put them on there)Since I use E-Tek Drive, i had to use lower grip wheels in order to give me a balance of control & speed.
quite origional. reminds me of the stock ai one...