Check my doodles
Basicaly you have a + and - and then a connection for the middle of the pack.
I think form looking at maxamps website that the middle connection is shared from both of the saddles, just like most other 2s2p type packs. So although the pack will be balance between the 2 pairs, each pair can still be unbalanced. Unfortunatly there is no way around this at this time.
MRT, Novak, Spektrum, Sanwa, Tamiya, Alleven RC, Maxamps, CheapBatteryPacks, Duratrax Ice, Pro Peak PSU, Nuova Faor, McLarney Racing, Futaba, KO Propo, Team Associated, Enerland.