Hi all. I have the older muffler (no issues till now). The number three cylinder exhaust to muffler connection has a leak. I see no cracks or deformation. The springs simply are not holding the muffler to the pipe snug. I probably will put the newer exhaust on next annual, but in the mean time, has anyone experienced this, and have you tried slightly shorter springs to bring the muffler snug? Any help appreciated. New to the RV-12 world as I inherited the plane after my father passed away a few months ago. Thank you again