I just bought my first pack of slick tricks, thanks mean v... Got the blades in fine, but are they not tight until you screw them into the arrow???

That's correct. Then when you spin them if you actually have any wobble; just loosen the head and turn the washer a little and retighten. Kepp doing it until it spins true.

Never had a problem putting them together, but changing the blades after they have been through a deer is a whole different story.