I used to bottom feed, but got so tired of basically crawling under the project to find that tiny hole that I am now strictly a topee. I had a problem at first finding the big slot but then it dawned on me.... if the blade is straight, it will point right to the slot when you lower the arm. So, I simply start to lower the top arm, slide the blade through the hole, catch it on the bottom (to avoid the bent blade scenario) and clamp it. When you are working on large projects, bottom feeding is such a bother. As a topee, I will not be buying one of the new Jet's. The bottom clamp is not tooless and even changing blades becomes a hassle. The new Seyco seems to solve all the problems.