Okay, you see the CTE and ETA lines. You now have a perception of the line of the CB to the OB. It isn't either of those lines, it is the perception or line you see when you have aligned yourself correctly to see both. You sweep either right or left, as Stan demonstrates many times in his DVD, dependent upon whether the cut needs to thinned or thickened. In most cases, that is obvious. For others, it takes practice/table time and with that, experience will make that "others" category smaller and smaller.
There are no "fine adjustments". People that don't understand the system keep trying to say there is and there simply isn't. When you obtain the correct visual perception and sweep correctly into the shot line with a properly aligned cue, then deliver a straight stroke, the OB goes into center pocket. Time after time after time.
Learning CTE/Pro One isn't easy. Depending upon your skill level, you may find that you need to step back and develop a better stroke and basic fundamentals. I did. Not only that, I had to develop a solid PSR, along with improving all my basic fundamentals. To me, that has been the biggest benefit of CTE/Pro One, it forced me to see my weaknesses and then invest time in building a solid foundation for my game. Just think about it. What good does it do you to find the perfect aim line if you can't deliver the CB straight down that aim line? I think it is difficult to impossible to consistently find the proper perception if you don't understand alignment. And one will find it difficult to properly sweep into the proper aim line unless their alignment, stance and foot work aren't working properly.
If you're looking for one of the CTE/Pro One advocates to tell you the system is easy, it is the Silver Bullet or something like that, it's not likely to happen. If you're absolutely serious and committed to improving your pool game, I 100% believe there isn't any other system that comes remotely close to what CTE/Pro One can do to help you achieve that. But it takes a lot of study, work and patience.
I got serious about CTE/Pro One about a year ago. I remember asking a lot of these same questions. I remember people saying what I said to you. I remember people saying "you need to watch the DVD 10 times, 15 times, 20 times, etc,, that everything you need to know is in there." Honestly, I thought a lot of it was BS. I got very frustrated with Stan a few times. But thankfully, I stuck with it. And guess what? They were 100% correct. I have damn near wore out those two DVD's and believe or not, every time I watch them, I pick up some little tidbit that helps. It has improved my overall game immensely and more importantly, my enjoyment of the game. I think you'll find that the people who really understand CTE/Pro One also understand that it is far more than an aiming system, it is a complete pool playing system.
Read through the threads in this section. PM mohrt, Neil, Gerry Williams and Stan with questions. Watch all the You Tube videos Stan has out there. And most importantly, watch the DVD and go to the table. It is extremely difficult for some at first. It is so different from any other "aiming system" out there it is difficult to grasp. However, I think if you put the effort in and have some patience, you'll be surprised at how quickly you will start to understand the concepts and see things begin to work for you.
If you are passionate about pool, do yourself a favor and go see Stevie Moore in SC or Stan in Kentucky for a private lesson. I'd also highly recommend you purchase Mark Wilson's book, his text book descriptions for building the basic fundamentals are the best out there by a significant margin.
Good luck!