Check into making your own CL. Its easy and in the long run, way cheaper. My CS maker has paid for itself in the order of 100 fold with in a years time. Shelf variety CS needs additives and stabilizer by law, and has been noted to cause problems with the CL itself. Making your own high quality CL ensures your own quality control and because its leaa expensive, you can use it in other ways you couldn't afford to otherwise. My research led me to this knowledge and I'm glad I took the time.(I use a device manufactured by SOTA Instruments)
Do your own research. You're worth it.