Just an offer :) it could have been a showing of your faith in your product. If i pay for it, where's the motive for me to take the extra time make a video do a performance test and post it here?
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Tell you what, I'll pay for a 2 oz bottle if you money back guarantee it will double the output. I wont make a video or do a gen-set test but i'll test the production before and after and post my results.