I put this short video together about blade tension, more specifically, blade stretching. I've noticed that when you first install a new blade, that it quickly needs re-tensioned. This is caused by the blades actually stretching a little bit making your tension less than you originally set it up to be. The smaller the blade size, the more the blades tend to stretch. I have gotten in the habit of per-stretching my blades when I install a new one and I also check the tension periodically as I use the blade. I will show you how I do this in the video.