This is landing gear extended 20mm to give ample clearance below the gimbal. I would print at no less than 25% fill also. My current pair I printed at 10% and they are a tad too flexible. One thing to note is that the inner holes have a small step which I didnt think about when designing. So when you print two (one for each side) The step is on the outside on one, and on the inside on the other. Just FYI