sc10 servo recommendation
 

Having trouble getting responses on other forums and need help choosing a servo for my stock brushless sc10. I have the rtr standard xp3-ss 2.4Ghz radio/receiver and stock esc. Should I get digital or analog? Does motor type and esc play into my decision? Eventually, I may go with a Castle 3800 SCT. Others have suggested Savox 1258TG and Hitec 7966 but I do not know if my radio/esc is compatible/powerful enough. Thanks