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Shimano DA 7800 hubs
What on earth possessed you to go for those? Shimano realised their error after about 6 months and replaced them with 7850. You need to use the "10-speed only" CS-7800 cassette with the deep splines, which are not quite hen's teeth yet but will be in a few years when you've worn out your first one.
A bit of weight imbalance is normal, due to the rim joint.
In my experience, Shimano tend to ship their hubs a bit tight, so you'll feel some clickyness in the bearings from new. Don't hold the axle and spin the wheel, hold the wheel and spin the axle. That will tell you whether they're too tight. Cup and cone bearings open up under radial load, so as long as they're not ridiculously tight unloaded, the clearances will probably be spot on once you're riding.
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gbj_tester
@William.
Just recieved a brand new handbuilt wheeset, built on 28h NOS Shimano DA 7800 hubs. Front spins silently and perfectly true. Rear spins true, but with a slight up / down shift in weight, and with little clicks felt in the hub and through the rim.
Has my wheelbuilder rushed the rear slightly? Does my new old stock hub need grease? Really don't want to open up a brand new hub unless absolutely nescessary.