I've had no issues with the 6" coil but I just, this morning, finished repairing my buddy's 11" coil. Cut new additional ears out of ABS plastic. Reattached the original ears with Black ABS cement then attached the new ears using the same cement. The ears are now twice a thick as the originals. I did this on a Macro Racer coil a few years back and and it's still going strong.