Hi Mark, Read your brake saga with great interest. Reminds me of the many fights I had with those #%^ brakes on my 300's . You have my condoleances and all my sympathy ! I understand that some Club members have expressed that they are happy with their stock original Center-plane brakes. I have never been that lucky. The only intelligent answer I can have is to your specific question: "Another thought is to convert to disk brakes. I would rather not but it's an option. Is anyone experienced with this conversion on a 300C? Your input is greatly appreciated. " There are two commercial kits now available that will bolt right on to your 300C. One is made by "AAJ" in Portland, OR - their web site is: http://www.aajbrakes.bravepages.com/ and the other is made by Stainless Steel Brake, upstate NY : http://www.stainlesssteelbrakes.com/ Both are based on a bracket that attaches to your spindle and require no permanent modification to the car. Both will fit under 14" wheels. John Hertog Sag Harbor NY