Trackpower.. yes, no?

[Sylvester]

I was thinking of going with 3 trackpower 4900 packs, 2 for my LSP and 1 for my B4, than sell off my maxamps packs.

Id get their V-balancer, and use my 989 to charge them up.
Do you guys think it will be an increase in performance? Im already running a 4s2p maxamps 8000 lipo in my lsp and a 2s2p 8000 lipo in my B4.

How could i balance/charge 2 of the flightpowers at once? They dont seem to have a balance plug attached.

Last question ; the v-balancer is inline like the lba10, correct?

Thanks guys.