RE: servos for sig four star
I use Airtronics servo's, but the manufacturer doesn't really matter. I would opt for a decent high torque ball bearing servo for the ailerons, elevator, and rudder and a standard servo for the throttle.
OH, I am assuming that this is the 60 size 4*. Is this the 4*40? If so, then perhaps the high torque may not be necessary, but definitely the ball bearing servo's.
Where in NJ are you located?
DS.