I have had a LV #4 jointer for a fewyears and tried a new method to sharpen the iron. After totallymessing up the edge, I went back to my Mkll honing guide which I haveused many times before. Using 1000 grit to straighten the edge, Ikept getting a variation of more than 1/32 from the left side to theright side. I thought that I was using equal pressure on the iron. I was checking straightness using a 4 Starrett squareand also a precision square. Then I decided to check my brand newPM-Vll which I just received and one that I have not touched. It wasoff the same amount which had me scratching my head. Could both mysquares be off? I thought that one was known to be as accurate asone can expect. Could the new iron be off square?