One thing that should be looked at is Theyer's account. If taken too literal then no.1 won't fall at all. Also it's impossible for no.1 to send Jack towards B, it blocks the path no matter what. He was 40 ft away, on the starboard side. When no.1 falls, B would float aft and over to amidship due to the suction bringing it in. If it were no.2, Jack would be brung under, then pop up right next to it. So that and the hand full of accounts saying that the lights went as it broke means that he could not have mistaken it with no.1. These people are all ones that are pretty nearby the ship.
This means that water would have to edge no.2 almost, which is because the quick sequence of the break and falling of it. All others say that she slowly righted herself, so it's probable that he missed the righting. He'd come back up to it going back into the air. After this, the ship would bend backwards because the bow isn't going any more then 17-25 degrees as the rest of the water is hugely coming from the back.
Therefore, this my proof and reasoning for more a 17-19 degree angle. Funnel no.2 couldn't fall if water is not starting to weaken the base during the break. The whole lights situation also shows that Titanic needs to have the list added to get much of it. If she's breaking the traditional way, they'd all note this. If she broke over to port first and then right as the lights were out, then many would have missed this.