Nice detail about the portable heaters duplicating and becoming inoperative. Explains why they didn't have heaters. Those tents, though, were pathetic. And no sleeping bags? I've got thermal sleeping bags now. Doesn't matter if those duplicate or not. In fact, the landing party would be better off if they did duplicate. Beam down a bunch of blankets! How about some proper tents made to withstand such harsh conditions?
How about beaming down "a hundred pounds of that thermoconcrete. You know, the kind we use to build emergency shelters out of. It's mostly silicone." Sounds like that stuff would have been great to use to build an emergency shelter.
Or how about using hand phasers to boar through the rocks and make a cave big enough to sit in. One side would be exposed to the elements but the other sides protected. Cover the entrance with those worthless tents and be set for the night. Big enough cave could even have room for rocks to heat with phasers. Rocks would provide heat longer.
These are great ideas. It's even more surprising given that Spock apparently led the training course in survival procedures. Guess he's not an expert in everything...
Kirk's log entry where he states that " Unknown to any of us during this time, a duplicate of me, some strange alter ego, had been created by the transporter malfunction." Kirk must go back after the fact and record log entries. Must have been made before Spock recorded the captain's log later in the episode
Several of these early episodes have Kirk recording his log in retrospect. This episode really mixes up the past and present tense though. I hope they'll settle on a format soon.Even more confusingly, Spock's log entry (near the end of the episode) gives a Stardate that would place it BEFORE the previous two from Kirk! Interestingly, the log entries do not contradict each other:
- Captain's Log, stardate 1673.1. Something has happened to me. Somehow, in being duplicated, I have lost my strength of will. Decisions are becoming more and more difficult.
- Captain's Log, stardate 1673.1. Entry made by Second Officer Spock. Captain Kirk retains command of this vessel, but his force of will rapidly fading. Condition of landing party critical. Transporter unit still under repair.
Spock's entry really does better reflect conditions earlier on. A result of some creative editing perhaps? More on that later.
LOL at the inactive main view screen when good and evil Kirk are arguing on the bridge.
Gotta love that minimalist screensaver design!

Much easier on the eyes than the trippy colourful one we saw in WNMHGB too...
Base cycle for phasers is stunning force. This setting is still strong enough to blow a hole in the side of a wall and damage sensitive equipment.
That phaser which did the damage was being held by Evilkirk - we don't know what setting he had it on, but I wouldn't be surprised if it was something slightly higher than "base cycle".
Stun the mad dog! Don't try to hold it while someone else uses a hypo to knock it out. Stun it!
They were quite reluctant to stun Evilkirk though, which is why (I guess) Spock used the nerve pinch. Maybe they have no way of knowing what the stun shot will do to a half-man transporter abomination of nature?
This transporter thing is interesting. Does it always take 2 to operate? Guess not since the tech left before Kirk beamed up. Maybe it's specialized equipment and if you are not a certain tech rating you cannot operate it by yourself. Seems like so far we always see 2 people operating the transporter
Having two guys operate the transporter really sells it as a piece of delicate machinery that require specialised training to use and it's something I will be sorry to see go if the extras budget gets slashed later on down the line. Maybe routine transporter operations are technically safe enough with one operator, but it's always useful to have an extra set of hands in case something goes wrong?
Is there only one transporter or are there others? If there are others, are they independent operating stations or just multiple controls and pads tied into one centralized transporter mechanism. If this transporter was faulty, why not just use a different one? Either they only have one transporter room or they are all tied in to the same transporter mechanism.
So far the only different Transporter Room Kirk's ship that we've seen is in WNMHGB, which was located off a different stretch of corridor to the usual series one, but there's no way to tell if that one is still around. Plus, the crew always make reference to THE Transporter Room, indicating a singular station. If there are other Transporter Rooms on board, I would speculate that they are not in an active condition. Maybe transporter beams are rough on the hardware, necessitating regular maintenance and swapping from one room to another at different times of the month?
In any case, the big mechanical tube that Evilkirk phasers a hole in would seem to be essential to ALL transporter operations, since it is in the Engine Room and presumably draws power directly from the main engines. Either way, Sulu is screwed...
This episode also features several curious production choices. One is the total absence of delta badges on the uniforms in the early scenes. Apparently someone just forgot to reattach them after the nightly dry cleaning?
The other is an editing issue. The scene where Kirk & Spock first meet the evil dog should have come AFTER the attack on Rand. As it stands Kirk sends the (apparently McCoy pranked) Spock away, then he chases after his first officer to visit Scotty, then Kirk goes BACK to his cabin to wait for Spock to come and accuse him of rape, which can only have happened when Kirk was in the Transporter Room full of witnesses!
The scene should really have gone AFTER the attack on Rand, when Spock deduces that there is an imposter on board. Apparently the editor didn't feel it was as dramatic a commercial break, so he switched things around.
Source:
http://www.orionpressfanzines.com/articles/enemywithin.htm