I don't want to scare anyone as I'm not absolutely sure, but. Do replica wheels not use taper seat bolts (is that not why they come with new bolts) and genuine wheels use a radius seat? Obviously you cannot use one with the other if you want the wheel to stay on!
I was recently offered a set of 3+1 gen/rep and did not go for them for the above reason. Although if it was the case you could use taper seat bolts on the rep and radius on the gens, assuming all other parameters are matching.
Anybody know for sure?