So I guess I'll be the first to respond regarding the October 2017 test. I feel I did poorly.
I guessed on probably 1/3 of the questions, if not more. The Civil breadth for me was much more difficult than depth (Water & Enviro). For several questions I could not fully understand the illustrations provided, and thus couldn't complete the problem. I spoke with several others who felt the Civil Breadth was harder than they anticipated it would be (and some re-takers who said it was harder than their previous attempts), but maybe I just spoke with the roughly 30% who aren't going to pass. Some topics that I felt confident in (trusses and horizontal curves), I could not get the answers to.
I figure there's not much chance I will pass. Lets say worst case scenario I guessed on 40% of the problems, or 32 questions in total. That means I have to get all of the questions I actually got answers for correctly (unlikely), and also get at least 8 of the 32 guesses right to get into the 70% cutoff range (just using April's cut off for an example).
Oh well - it was definitely an experience I won't soon forget and at least I have a feel for what it will be like the next go round. The only thing I will be doing differently the next time is taking EET on demand for both breadth and depth. Just not sure about the timing of it all - do I want to jump right back in for the April test or wait until next October.
I consider myself a realist by nature (my wife say's I'm closer to a pessimist - she's right, as usual) so I've already prepared myself for a fail based upon the facts of the matter. If I get a pass come December, even better.