looking very nice.
the flowering time will take longer using this growing method, i find plants grown in xmas tree shape flower according to the breeders estimate give or take a week or 2, most usually take 2 weeks longer than stated.
but when i use heavy lst or hst i find it really slows the flowering period down, im thinking as the plant is sharing its energy more its going to take longer to mature, you dont just have the top bud as the main cola instead you have many buds playing roll of main cola so the energy will be spread between them all, ive always found from my own clones that a plant left to grow as is usually always reaches harvest much earlier compared to lst/topped/fim etc etc,