I know the old school thought of mulching vs. bagging is that mulching causes thatch. I know that we now know better. That mulching does not contribute to thatch? Am I right? I do fertilizing only (hybrid organic/synthetic program). I sub-out all of my mowing. I know a great guy that only does mulching, but my parter is somewhat of the old school of thought that mulching causes thatch. Do you guys know of any places I could point him to change his mind? What should I do here? Thanks for all of your help.