I recently swapped out all of my blades with the new German blades and found that they all were tight with no slop- I use the washers.

While swapping them out I noticed some of my old ones had a rounded rear edge that sits inside the furrel and most were squared off. I bet the rounded ones were the loose ones.

The new German blades have a larger ground edgeand are super scary sharp. I compared several to the old blades and each one was slightly larger from outside edge to outside edge. Maybe a couple of 32" wider overall.

I did use the old washers on some arrows to make thebladesline up the way I like ( 2verticle, 2 horizontal) the newer washers are a tad taller than the old.