This site has so much info its crazy, not sure how to process some of it cause it goes against a lot of what I have read about sechem Prim and Safe. I'm going to post a link to a small part of this sight about cycling and the use of sechem prim and safe with many test ran to show results.( let me know what y'all think). If you scroll all the way down to the bottom of the page there is many more links you can click on and then many inside that link. A bunch of info.