Using these on my HK500. I needed to use one shim for each blade to fit snug into the grips.
The finishing is fairly rough with a few knicks on the edges. The paint doesnt go over the edges leaving a raw finish look. COG was perfect and balance was ever so slightly off. Roots and brass shims are perfect. This balance better than some of my carbon blades.
I also love the fact that I received two hologram stickers to add to the blades.
A perfect set of blades for testing and beginners.