you wouldn't have a problem with nitro as you use a rx pack to directly power the servos.

in electric you can have a brownout if the power supply from the esc to the rx is less than perfect.
this is a simple fix though. just install a 4800UF cap onto one of the rx channel leads to keep the rx fed with stable power.

otherwise, savox servos are excellent for the money spent on them. cant compare them to higher end units as they are all i have, though i might pick up some airtronics units for the new radio to compare.

no complaints though. 12th scale, 10th scale nitro and 10th electric tc all on savox servos and running VERY strong.