I think its best practice to regrease the bearings every 2 years or yearly if you live in damp areas. The exact weight of grease can be done without problem if you use a baggie for it, dunk the bearings in them and work the grease in the baggie, remove bearings install them, and then cut a slit in an edge and fill the hub with the remainder of whats in the baggie.

For adjustment, best is to use a dial gauge.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)