Mine went together with no problems with fit.
I heard that the production run of the RN/SAAF aircraft had problems .
I built 2 of the RAF boxed aircraft and both were ol.
One of the lightning fuselages was slightly warped but the bricks went together
without hardly any filler
I use Dichloromethane or MEK as cement , which really helps in avoiding
excess filling.
It means that I hardly ever have to reach for the milliput !