The Zero 0S first run (your copy) and Zero 0A Cannon Fodder without white stripe first (and only) run should and must
be avoided at all costs. Your not the only one that was burned.
After that you have the VF-0A Shin + Ghost combo which was a half fixed line.
Then they released Roy VF-0S + Ghost combo, apparently all fixed.
After those releases we had the SV-51's (Ivanov & Nora's) with pretty much all clear of problems.
Then the YF-21 1/60 recently, which is pefect.
Yamato has a new QC guy (since after the Zeros), and apparently it's paying off for us.
Graham (couple pages back) has already handled it and said it's tight as, he gets to handle stuff earlier than us.
I shouldn't worry if i was you. You could always wait till the VF-1A Hikaru, but you are a Roy fan so go ahead an get it.
The differences are plain to see, look it up, again.