Wow! Very cool LB!
I'm happy to see this inspiring trident maple of yours, and the way your channel is developing, keep it up dude.
Hoping mine get's that good over time =].
Btw, After my trident situation worsened, I kind of discovered what was wrong with it after talking with some experienced trident cultivators.
It is a fungal issue, that is likely "Phoma" or "Antracnosis", I was able to control it applying fungicide weekly (Based on Difenoconazole).
I described my situation and asked some questions for Terry Erasmus, and he kindly replied me with some instructions, and told me that is much likely that I was able to control it, but not "cured" it, but if I could be able to keep the young leaves healthy, once they're more mature the fungi won't be much of a problem.
I'm sharing it, because I remember you said you had a similar issue, so might be helpfull.
Sorry to "invade" your topic. But here's a picture on how it looks like now, (just letting it grow to thicken atm).