Ha! Saris--or the bike shop that sold me the wheel--had a joke at my expense. Even though the hub cap said Pro+, and I got the right bearings for that model, they were the wrong bearings. The mechanic had to get a new set, which were for SL+ and SLC+ hubs: 3 x 6902RU (TSC Raptor), $5 each, and 1 x 6802 LLB ceramic (Enduro), $30. That was an annoyance too, that the mechanic threw those bearings in there without checking with me first, but he also trued the wheel for free, saying it was dangerously de-tensioned, so I guess I can't complain. (The worn bearings were 'EZO' brand.) $80 total before tax plus $15 to return the wrong bearings. That's $85 cheaper than mailing it to Wisconsin, with only a 5 hour wait instead of weeks...

The axle feels pretty tight, doesn't spin freely, but I assume that tightness is normal?

Over 400 page views of this thread. I guess there are plenty of people out there who might benefit from all this info...