Ok so in a nutshell, yes you can go overboard with the butterfly farts. No, theres not a specific % or amount that is clear cut from flavor to flavor or blend to blend, and no, specific farts don't clash with one another (LJ + ACV =/= clash, for example). The pH concept we refer to when mixing/adding may not be what is actually happening on a molecular level. And most importantly, constant experimenting is key.