ntsmith: The extra weight won`t necessary be too high. You might be able to power the gadgets with a 2200mAh good quality NiXX which is able to deliver the required power. I have used 1700mAh NiCd in some of my 2-meter planes, with 5-6 digital servoes, with success.
Also remember all the advanced servoes and receivers might in fact be the weak point in the chain. There might be "safety"-settings like failsafe etc in some of the servoes which won`t help, but cause a crash. Using good analoge servoes, and avoiding the fastest servoes also will keep the dramatic current peaks much lower than the worst, ultrafast digital servoes. It might be better with an analog servo which is sagging a bit than a digital servo which have a hugh holding-power kicking in.
patrnflyr: I saw a short review of the CC 10A BEC. But the review didn`t show any useful measurings. I would like to see the output voltage on an oscilloscope during different loadings. Only then could we see if the gadget is worth the money
I have measured some UBECs myself, and some of them worked really good. But I have also found some which never will be installed in any of my planes... Really bad voltage variations, and excessive peaks which are far above specs for servoes and receivers.
One funny thing with the release of this CC BEC is the advertising: They say it is a 10A BEC, but when you read the specs it shows it is a 7A BEC, or a 5A BEC if you wuld like to use it in a big model... They are honest enough to mention the UNI-plug is not rated for 10A. In fact it is rated for 3A... But if you would like to use a simple power-list to distribute the current outside the receiver it is not a big job to solder in some good cables and solder directly to the list.
Anyway: in a 2-meter model things would usually work well. Especially if you fly pattern. I would say the magic and dangerous limit is at 2,4 meter, if you include 3D-manouvers as a habit
Remember other points of danger: long and tiny cables, cheap switches, failsafe settings way off, mechanical binding at endpoints and much more. The KISS-principle is still valid, and rely on your own experience and knowledge. (Anyway, discussing is always interesting).
Happy landings
