Thanks. I cleaned everything thoroughly and used steel wool to smooth up a couple rough patches on the hubs. It helped a little, but there's still some runout ... it does help to measure it with a spare lugnut opposite the allen screw, then I get pretty much no runout. I guess the wheels hold it even once they're on. It seems like an odd design to me.

__________________
1987 300D, arctic white/palomino--314,000 miles
1978 240D 4-speed, Euro Delivery, light ivory/bamboo--370,000 miles
2005 Jeep Liberty CRD Limited, light khaki/slate--140,000 miles
2018 Chevy Cruze diesel, 6-speed manual, satin steel metallic/kalahari--19,000 miles
1982 Peugeot 505 diesel, 4-speed manual, blue/blue, 130,000 miles
1995 S320, black/parchment--34,000 miles (Dad's car)