C&D is a great cleaner. I've got a quart bottle I've had for over 5 years that's about empty. It's lost its green color, is brown now, and is much runnier than it was when new, but it still cleans great.
I've also got a quart bottle of the original LM cleaner that I seldom use because of the smell. I got a ball in to clean yesterday that was super dirty, rolling more on belt marks than on ball surface. I used Valentino's cleaner, then C&D and there was still gunk on the surface. The LM took it right off. I wear latex gloves when using strong cleaners. When I took the gloves off, my hands had the same strong odor the LM has. I had to wash my hands twice and use hand lotion to get rid of the smell. Be very careful when using this cleaner. -- JohnP