I've just never been able to get decent borders from an easel, that's all! At the moment I use masks cut out of light-weight masonite. I only made them in panoramic for 8x10, 11x14 and 16x20, and thun bordered full sheet for 11x14 and 16x20, so any other sizes (including normal full 8x10) I print either full-bleed (as it were) or with lop-sided easel borders... It made my day in the last round when one or two others had borders bout as even as mine. You'll notice the texture of the cut masonite in the borders of my print. I kind of like it actually, but still find a good, straight and true border very impressive!
I picked up a 11x14" 4-blade Saunders second hand a few years ago. One of my favourite darkroom tools. I was always staggered by the new price but can appreciate why now. Built like a tank and the multiple paper guide slots are genius.