Very true. These motors are monsters for sure. I really don't have time to be the tests mule to sort the problems out especially when I'm planning on running the Scarlet soon. It would be nice if there was a motor that was just a tad larger than the U5's but I think I need to go back to the U5's and try them with 550 booms and 16 inch tiger props. I think it will be good enough to get by.