That feels like it would run into the QM's states goal of not making dice roll components the automatic answer though IMO. There needs to be some kind of solid argument for why we should not want to take an early tech for a design, even if the arguments for doing so win out in some cases. "We'll get another 2/3 chance for everything to go fine or even better next design if we do poorly" doesn't seem like it'll fill that role.Eh, this feels bad to me. The closest I could support would be the prototype allowed to reroll every design taking the best result.
Basically a roll to check if Starfleet has fixed the various issues yet.
A part then tends towards better functionality, but we could get stuck with a bad part rolling badly for multiple ships.