Whats the best Lipo/regulator combo to use for receiver/servos?

[BrianG]

My favorites are (in no particular order): Western Robotics Hercules BECs (several to choose from), Koolflight UBEC, and any of the DimensionEngineering BECs.

The cheapie BECs are cheap for a reason. They tend to be "noisy" which can be a problem for certain receivers. Despite the fact they use the same switching IC as the better makers (listed above), the choice in support components can make or break a design. I've had a cheapie one that tested fine, but would cause my spektrum rx to "reboot" on occasion.

The Castle BEC looks good on paper and has some neat features, but I found that one to be a tad noisy. And there have been several reports that they fail by sending full battery voltage to servos/rx. Of course, ANY BEC can do this, but seems to happen more on the CC ones. Could be just that there are more in use so it stands to reason there will be more failures, but I am hesitant to blow ~$200 in servos/receivers to find out.