Another note, I intended to use the servo arms that came with the plane on the MKS servos I put in, that didn't work out so I ordered replacement arms from SWB right here in West Bend WI. If you're familiar with SWB you know that his servo arms are the best. I learned that he is retiring and may or may not find a buyer for his business, so if you're thinking about getting SWB arms for an upcoming project, don't wait too long!.