Originally Posted by SueDor
I have an Omnigrip 6 x 24 use it a lot. Also a O'lipfa lip edge ruler ( 5 x 24)that I am trying to use more often. It has a lip at the bottom that goes next to the cutting mat to make straighter cuts. It maybe working, sometimes that slips also.
I urge you to check the measurements on your Olipfa ruler with a tape measure or your Omnigrip. Mine was no where near accurate and now lives at a friends house who only uses it for the straight edge.
I use my 6 x 24" Omnigrid all the time. A sandpaper dot in the corners keeps it from squirming while I'm cutting. I use my 6.5" square Omnigrid for squaring up patches and smaller blocks and fussy cutting & my 12.5" square for squaring up larger blocks.