Not a bad kit overall.
No real vices apart from the afore mentioned wing motorization stuff.

Granted it's not the most accurate kit of the X-Wing in creation,
I think the producers had to compromise with the
rear fuselage cross section shape due to the
motor/gearbox stuff they put into it.

But then saying that, the full size mockup and the
CG/effects models don't fully match up to each
other totally anyways so I don't reckon you can win 100%.
Saying that though, someone will prove me wrong one day I just know it.