If it's a completely new customer frankly I don't think they'll know much about the Wirble. If they surprisingly do look up info on it they might find that it is modeled to it's traverse accurately and they will be fine with it. If they have no past experience with it, why would they whine about it?
for the record.......I'm not limiting my theory to just wirbs......it goes for everything here....
they have two weeks to either say "wow.......this is fun.......I'll pay for it"........and the harder you make their stay in those two weeks...the more likely they are to not re-up as a customer..... that goes for gv's, aircraft, ships........anything.
make all the improvements to the game ya want....the more the better.....but
don't impede the performance of any war craft for historical accuracy sake......all the people into that are already here.