[Crazychambers]

I've got a KO PDS2123FET servo, its 7.2 volts, 0.06S @ 60 degand 9.5kg-cm torque - £35 posted

And speedo wise a Speedpassion GT2.0 LPF, run for a couple of meetings with a B4. Can take a 5.5 turn lipo. - £85 posted