You know, the Twist uses aileron servos out in the wing doesn't it.

You save over half an ounce every time you use an Hitec HS225 instead of the average servo. So if you used 3 HS225s in either the 40 or the 60 size Twist, you'd save probably about 2 ounces (most standards are closer to 2 ounces than 1.5 ounce). It's worth doing.

BTW, a lot of micro's really don't have enough torque to handle the throttle chores if the pushrod binds at all. I've found the Hitec HS-81 with about 36oz/in torque (about $16 ea) to be about the low range for torque that'll work the throttle ok.