So I'm still having trouble tracking down some good batteries. The Gen Aces are out of stock as are the Blues. I know some people use turnigy but I just worry that the 35c won't be enough. People also suggested Venoms but just heard terrible things about their packs. I wouldn't mind using Maxamps but last time I spent a bundle on their batteries (I rationalized that it was worth it to buy quality) I wasn't impressed at all with their batteries. I'm on the waitlist for SMC's 4s but if anybody else has any suggestions let me know.
If not, do people have any luck using two 2s packs? Just seems clumsy to me, but I guess it will have to do if there are no good 4s available in the short term.