There's no such thing as a servo that is "too powerful" and there's not a lot of difference between a standard servo like the HS425BB/S3001 (just under 2oz) and a powerhouse like the Hitec HS5955TG (just over 2oz).

The S3010 servos have a good power-to-weight ratio and so long as you can live with the slop in the gears and outputshaft they'll do the job *very* nicely.