OK. I never really could find anything in search until I clicked on the ADVANCE search. You can find the things you are looking for much easier and cut down on so many duplicate posts. On January 19 of this year, feffertin posted this on the Slidelock Ruler and there are 86 replies. Please check it out because it may have the info you seek. Good Luck !
http://www.quiltingboard.com/main-f1...t-t239186.html