I'm a bottom feeder. I place the blade ends in a small pair of pliers and gentle squeeze them to flatten the ends. I don't get them perfectly flat but, close. When I clamp the blade in the bottom clamp, I allow the blade to turn as it wants as I tighten it, I then thread the blade through the wood and slowly tighten the top clamp. As you tighten the top clamp you can feel if the blade is flat against the screw or if it feels like it is sideways. If it feels like it is sideways, don't continue to tighten it, that is when you will bend it. Retry to place the blade in the clamp until it is flat against the screw. I some times change my tension a bit or I don't hold the blade as tightly in my fingers to allow it to line up. Seems like a lot but, with some practice it will become second nature. Although you can cut in any direction, I find that rotating the piece a bit so I am not pushing the blade sideways too much, I break fewer blades.