You should be styling trees via clip & grow and wiring. If all you're doing is growing-on for big plants, then you're running a nursery. Others can do it better and cheaper. If you're waiting for the finished trees to jump on to the bench, try to remember that it generally takes ~5 or more years of detailing to make something ~finished~, and then the real work starts to maintain it. The difference between trees in process of refinement for five years and ten years is night and day. The difference at 15 and 20 years and so on is also
very apparent. Of course, it's debatable whether the time in training is you training the trees or you becoming trained by the trees. Growing them is a rewarding endeavor, but training them is the really satisfying part of the process. I don't see that you have started the process.
I hope I'm wrong.