Help 4s or 2s in series?

[GorillaMaxx360]

personally i would go with 2 different packs and wire them in a series. the reason i say this is mostly for weight distribution purposes. it would most likely handle and look better if you had two batteries on each side to use. but if you decide to go with 4s maxamps makes 4s packs. though not as cheap as trackpower packs they are still a great buy. there are also a few other companies IIRC they make 4s packs i just cant remember who.