RE: Our Aeromarine and Blackjack 55 continual builds...
Not too many 2.4 Gig radio systems come with servos any more. I'd rather pick out my own anyway. Many of us use just a standard servo for the throttle and a heavier-duty one for the rudder. The 4-wheel crowd may use an ESC and then whatever steering servo that they need depending on the size of their vehicle. I just bought a Futaba 4-channel 2.4 Gig pistol grip radio Saturday which may be overkill for a boat.