I ran a search and got lots of varying information. I have the RCexel Opto kill switch with BEC (from VV RC last fall) and it does NOT seem to be cutting the 6.6 input voltage down to 6V or less at all. (still reading 6.6 or so) My XYZ ignition (RC Exel) says 4.8 - 6.0V right on it. I think I paid extra getting the BEC version of this Opto kill switch that is supposed to cut the voltage down. Is there any chance that when I actually hook it up to the ignition unit that it will magically reduce the voltage to 6V or less, or do I need to get a regulator/diode on top of having this BEC unit? Thanks a bunch!