Hey, i've got A Hanger 9 Tango 40, and i have flown it 4 or 5 times, and it has worked great, but i took it up to our club's freeze fly on New years day, and it was about 25 degrees and snowing, and when i did my preflight checks, the aileron servoes (JR ST-47) were real sluggish, and worked on and off. then a few days later i tried it again, and every thing works just fine. What i'm tryin to find out is if Servos can freeze, or if the just didnt wanna go that day. Can any body help me?