I really appreciate the help guys, I think with this being my first mirror I will go with the pyrex,...more sability for now. Waiting for catolog from William Bell...see what they offer, then will order one. mind you my wife thinks i'm nuts,, sure hope she is not right...lol.... Have checked my area for clubs, but none that have ground there own mirrors...so I hope I will have your advice when I start grinding this mirror...oh yes, Bob May... I found your site and have read it exstensivly..very informative, it should be posted here so others can find it,Thanks again all...will let you know when kit comes in.