I've used them before, I use the Shuttle's now because they have a little bit of an accuracy advantage on my setup. They shot pretty well for me and the one bull I killed with them I have no complaints. At 30 yards broadside, I didn't get a pass through but the bull was playing in a wallow so the wet and muddy hide was the cause of that. I was shooting a 424gr arrow at 268fps if that helps at all. Blades are definitely easier to sharpen on the Terminal's than the Shuttle's.