RE: Making a servo move slower?
One of these will do the trick [link=http://www.hobby-lobby.com/servo_slow_down_module_2157_prd1.htm]clicky[/link]
Goes between RX and servo and the movement can be as slow as 15 seconds.
N.B. only works on proportional servos though not on the type of retract servo that goes 180 degrees when commanded with no intermediate stops.