Building A123 Packs

[Arct1k]

Any suggestions...

I picked up three batteries... hence 30 cells...

I was thinking:

2 X 5s1p
2 X 3s2p or 4 x 3s1p
2 X 2s2p or 4 x 2s1p

That way I can run:
2s 2p or 4p (3p)
3s 2p or 4p (3p)
4s 2p
5s 2p
6s 2p
7s 2p
8s 2p
10s 2p

Just a touch nervous of making 2p packs and if they would get out of balance. Alternative is to make all of them 1p packs but then have to use lots of deans adapters to join them back up!

Any other suggestions welcome?