if you point out to me specific sources that can't be used and why i don't use them i considered black belt magazine a reliable source i now know what a passing mention is i went over to rs once as suggested and it was such a long read and confusing i said forget it when i put up a post and you or someone says its not reliable check to see if i put it back up the black belt magazine that you said was copyrighted i showed that link to an admin and they didn't say it was a bad link first i heard about it did you see me put it back up nope it is only to show that ron duncan was a noteworthy martial artist past that he's been dead for a few years the website is run by his son i believe so it may not necessarily be self published