Servos
In my pair of EB48s I've been running HV servos.
One is generic and specs aprox 300 oz/in and .09.
The other in my newer car is a ProTek 150T. No issues with either so far.
I run the ProTek 130T @ 7.4 in my SCT410 to make everything feel about the same for steering response when driving.
Unfortunately I have no experience as to throttle/brake servo use.