Surely, as a shape-shifter she can reshape her vocal chords as and when she feels like it? Keep her Martia voice by keeping her old vocal chords (in her new body), and then change them later?
Or am I missing something?
Also ealier talk of the Enterprise-A being a renamed old refit connie (hence it being so worn out in STVI) doesn't work - Scotty called it a "new ship" in STV.
Scotty didn't say that it was a new ship, his log specifically states "this new ship". It was new to them, it doesn't mean that it was a new ship.
"USS Enterprise - shakedown cruise report. I think this new ship was put together by Monkeys. She's got a fine engine, but half the doors won't open, and guess who's job it is to make it right... let's see what she's got said the captain, and then we found out, didn't we?"
"All I can say is, 'they don't make them like they used to!'"
<You told me you could get this ship operational in 2 weeks, I gave you 3, what happened?>
"I think you gave me too much time, Captain."
Shakedown cruises don't happen when a ship is just renamed. Perhaps after a major overhaul and refit (TMP, see real life Iowa class), or after a ship was deactivated and reactivated (see Iowa class), but not just a refit.
You also wouldn't expect the chief engineer to insult the assembly people if the ship had been built 20 years ago and was just now having problems. He'd insult the people at the dockyard who did the upgrades or repairs, or the previous chief engineer who let her go to hell. Or he'd curse Starfleet for giving him a washed up lemon.
It's clear it was a new ship that had a bunch of problems.
If I sell my 1995 Toyota, and then I buy a used 1996 Toyota, would it make sense for me to say 'well they don't make them like they used to!' when my power windows stop working? No. No it wouldn't.
The writing and spirit of STV and IV was that it was a new ship. GR for whatever reason, gave another hypothesis, which doesn't solve any story or continuity problem, and also messes up the drama of the situation.
Making the 1701 Alpha an old ship creates more problems than it solves.