Slotted holes combined with a universal hub is what made unilugs so bad to work with. You have to spin each lug nut in a crisscross pattern until it just contacts the fully seated rim, then spin the rim and snug, in a crisscross pattern, each nut a little at a time. If you do this, you may get a good position on the first try. If not, you can get a shimmy or bounce in a straight line and it's time to loosen them all and try again. You can watch for runout without any special tools, you need only a stable point of reference to watch as you spin the wheel. The edge of the rim should rotate as a perfect circle, and so should the edge of the tire with no weight on it.

Then check a reference from the front; the wheel should not appear to weave in and out while spinning. If it does, dismount the rim and check the rotor. If the rotor has runout, be sure the inner bearing race is fully and squarely seated.

I have found that many wheel bearing vibrations change when turning, and caliper/brake hardware vibrations are felt through the brake pedal when not braking and change when braking.