Hey Chad,

Yes, you're right. I've been considering the Li-po plus regulator option, but my current thinking is that as long as I can make weight with the 2S1P A123, I prefer it because I don't have the added complexity of the regulator, and it uses a safer battery chemistry than Li-Polys do.

Other options to lose weight are to use a pair of VHBEC's from Dimension Engineering. I'm flying on 2.4 Ghz so I don't think interference from the VHBEC's is a potential problem. Also, I could go to low profile servos for my ailerons, and save about an ounce. I could also go to soft foam wheels instead of the Sullivan Liteflights I'm using now. That'd probably save an ounce as well, and if I get really desperate, I can always remove my wheel pants for even one more ounce.

All in all I could probably save maybe 4 ounces max, which isn't enough to get me into the next battery size, which would probably be a pair of 30C 5S1P 4500 mah batteries.