Thanks for the information. For the linear regulator, I was looking at the Jaccio which is rated at 5 amps. Although labeled as a 6v regulator, I believe its actual running voltage is 5.7 volts. The 2S lithium pack should nominally provide 7.4 volts under load, so I believe that I have adequate overhead. I have several of the 10 amp Castle BECs, so I will have to take a look at the specs to see how much overhead it needs. I suspect that I should be OK. It seems to me that most people are using linear regulators, so maybe I will try the Jaccio. From what I have read, a 5 amp regulator is adequate for pattern specially if using electric power rather than IC (no vibration for the servos to contend with).

Thanks,

Teo