Hitec HS-645MG enough for single servo Revo?

[rootar]

hmmm is it bad to run the digital servos on more than 6 volts, ive been running some 50oz. servos on 7 volts and its a HUGE difference over 5.5 or 6 volts these are just standard analog servos in my LS10, I bought a 5646 digital from jnev and plan on running it my my truggy could i run it on 6.5 or 7 volts with no ill effects? i have yet to cook a servo in the LS10 but it could just be luck, does anyone run their digital servos on a little extra voltage?