OK got my servo...
It was a spare out of my AX10 crawler, it's a Hitec HS-645MG:
FEATURES: Three metal gears. Dual ball bearings. Metal 1st Gear. Four adjustable splined horns. For use with .60 size helicopters, glow or electric cars and boats.
SPECS: Speed: 0.24 sec/60° at 4.8V 0.20 sec/60° at 6.0V Torque: 106.93 oz-in at 4.8V (7.7 kg-cm) 133.31 oz-in at 6.0V (9.6 kg-cm) Length: 1.59" (40.6mm) Width: 0.77" (19.8mm) Height: 1.48" (37.8mm) Weight: 2.11oz (60g)
Not the best but the metal gear is nice plus it will take up to 6V so I'll probably throw in a 6.0V programmed castle BEC for good measure.