I've been watching and re-watching TMP/TWOK/TSFS to aid in my Enteprise VR project, and it seems to be quite clear that what is said and seen on screen doesn't reflect the typically accepted deck layout, where decks A, B and C are all housed within the bridge dome/teardrop structure. In TWOK Kirk clearly exits the turbolift on D Deck to go to his quarters, which until re-watching TSFS I assumed was the first proper deck immediately under the officer's lounge. However, in TSFS Checkov states: "CHEKOV: An energy reading from 'C' deck ...from inside Mister Spock's quarters." In addition to this, the graphic shown on the computer console clearly shows the position of Spock's quarters being below and to the rear of the officer's lounge. So the only way that is possible is if the bridge dome/teardrop only contain decks A and B, with B containing the Captain's Ready Room, Briefing Room and Officer's Mess/Lounge. I would personally approve of that being the case because it fits perfectly with my own scale findings, but commercial publications like Mr Scott's Guide stick with the 3 decks approach. What do you guys think? Has this been hashed out before?