A: I would say that collisions with the wreck are neither common nor uncommon. They happen, but the Russians took great pains to avoid collisions and it was a source of damage to their pride if one occurred. Indeed, you can hear the stress in Anatoly Sagalevitch's voice when it happened here. You can also see the particulates in the current moving in the direction of the hull, which tells me the sub is being pushed sideways into the hull. The Mirs have far more stability when moving forward and backward, and up and down, but not so much lateral stability. Consequently, the Mir appears to be just bumping along the hull because the current is pushing it sideways. Of particular note is that Lori and Jeremy Weirich, NOAA's PSO on the expedition, appear to be unconcerned, but Anatoly is not happy. It's also a very mild current, so he would find this collision inexcusable. Finally, you will note that there is a considerable amount of orange cloudiness kicked up near the end of the video. This is from either a collision or prop wash hitting the rusticles. Again, expresses concern.
Of particular interest to me is that the divers are looking for evidence of damage to the main mast from the illegal salvage expedition in the fall of 2002 and they cannot seem to find it. Roy Cullimore and I examined this video on the Keldysh on the 2003 expedition, and we both thought the unusual top down break in the mast was evidence that it had been pushed in from the top down. We saw evidence of this at the time, but I don't see it in this footage. I will have to take a closer look when time permits.
A: If my memory serves me correctly, there was an attempt to produce a photomosaic but there were logistical challenges. I have never seen a published version. In fact, your efforts are the first I have ever seen of this footage and a few still images since I was on the ship in 2003, when we would review the video footage in post-dive briefings.
This was my favorite of my three Titanic expeditions. I went with only 48 hours notice. Literally, a phone call on Friday afternoon asking if I could get to St. Johns by Sunday afternoon. My dive was cancelled because some equipment never showed up, so I spent 11-12 days on the ship reading Titanic books and making friends. It was the first time I was not in a leadership role, so it was like a mini-vacation.
Additional interviews coming soon!