Well said Raven! I didn't consider the price factor of a regulator! Anyhow, even if it was cheap, personally I don't like to add other components to a critical system , like the link battery - switch - receiver.

Just for information, I've asked in the Futaba support forum whether the 149DP receiver has a built in voltage regulator, as I read here on RCU...

Well, the reply is that it is! The problem of a higher voltage are definitely servos, not receiver. Link to my question:

http://www.rcuniverse.com/forum/m_3765553/tm.htm

very nice, don't you think?