8 3/4 ?'s
maybe at work this weekend, after i get done with Mopardude's pins, i'll write a tech article on this, edit it, and make pictures for it, to REALLY clear this up.....and include the reasons why there are so many different opinions on the topic....
i think it'd be a LONG article with LOTS of drawings.....
and maybe Adam will want it on the tech archives....
maybe i could sell my article to some mags....LOL