I have heard reports about blade flutter problems with Sceadu under some conditions. For this reason I selected 3 x S9252 to have some extra strengthness over the minimum demand. Besides there are nice offers, for example helihut and therefore the servo bundle is possibly the best update to improve your heli from the standard level.

I have s3001 servos in my wing plane. After I got used to see S9252 moving I was quite surpriced to see how slow the standard servos actually are!!! I think I need to update those as well.