Dave, we understand exactly what you're saying (BMW says organic only), and what you're trying to test (EBC organic pads instead of BMW pads). It's your bike, so if you're more comfortable staying with organic pads, that's fine. No one's arguing what you put on your
bike (except Joe, and we mostly just ignore him).
We're only trying to explain what this group has learned so far, to you and to anyone else who may come across this thread now or in the future. The wonder of the internet is that many more people read than respond, and once it's written it stays in the archives forever. So several of us try and keep things accurate by posting details or more of an explanation that what may have been called for.
My "experiments" with more than 6 brake pad changes match David's and many others' experiences: the HH pads work better with no noticeable rotor wear issues. Several of us take BMW's information with a large grain of salt, and would rather rely on our own experiences and intuition to verify whatever happens to be translated from German. Just ask about factory recommended oil or BMW approved tires to see what we mean.
That said, I'm glad you're trying this, and that you're sharing the info with us. The Collective Wisdom can be changed, but only after solid proof is offered, and usually verified by more than one individual. At this point, I don't think 300 miles is nearly enough to form a conclusion. But we do look forward to your results as the miles add up.