Originally Posted by
PaperPrincess
I have used it. I think it works well for smaller rulers, like a 6.5" square up or a longer narrow one, I tried it on a large ruler (6X24) and didn't think it helped much. I really like sand paper dots, but they always seem to be right where I'm trying to line something up.
My experience with Invisigrip duplicates PaperPrincess's experience. I now only use Invisigrip on smaller rulers and use sand paper dots for everything else. I've even put sandpaper dots on top of Invisigrip if the rules was still slipping, and that worked.