I think this mount is a piece of JUNK.......Here is why......I have a NEW Hobbico Avistar arf with a OS AX.46 with about 15 flights on it. On Sunday after Church went to fly, beautiful day!!!!!. I flew 3 times for about 20 minutes, refueling after each time. Brought it in & refueled it for the 4th flight of the day, took off and after a couple of inverted passes I thought I went dead stick, so I brought it in and while I was landing it I heard a loud rattling noise.... After a successfully landing I inspected the engine to surprisingly finding that both motor mounts had broken just behind the first bolt holes. Boy was I lucky....I forever check bolts. nuts, ect. to make sure everything is tight..... Anyone have any insight or opinions to why this may have happened?