Right chaps, lets get some things straight from the get go...
The capacitor on the ESC is there to drive the FET gates open and shut and has nothing to do with 'ripple currents', trust me, I know having been involved in testing ESC's since the early 90's....
If the ESC is disconnected from the capacitor, it can cause drive issue's on the ESC side.
BEC circuit in the Tekin, it is has a high current rating.
Savox, this is where the crux lies, they are glitchy, noisey and hungry servo's which can AND DO cause brownouts. I have even had a small 12th Savox cause system shutdowns in a GT12 on 2S.
If you re-attached/replace the ESC capacitor, fitted a capacitor to one of the receiver ports, changed the receiver, I would then look at the servo, check for free movement etc.
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