Billythekid....
Interesting tutorial, since I plan to do the same thing.
Question: Will flowering side branches sprout and develop from the section of trunk that was once a branch of the original "Y"? Now, it's trained and staked, and has become part of the "trunk", and it's sprouting flowers. I'm guessing: if you cut out the terminal, the mainstem will send out some flowering branches?
BTW....what cultivar are your growing, so successfully, according to all your pictures? What's your climate zone? I think I see some pink Bougainvillea growing near your Brug...so you must be in a warm-ish climate. If not....what will you do to overwinter your Brug?
Good luck, and thanks for the from-stick-to-flowers, montage. Remarkable progress for just one season!
Wishing you continued, good luck, and many more fragrant, dangling flowers.