@Clicio you asked for it!
Well Mr
@leatherback , I have left a comment right there but I will reproduce it here below.
"Jelle, congratulations, very well done.
First comment is... Your thornless one is doing much better than mine. Mine was an air layer from a big one (and that´s how they propagate here - not from cuttings) and the mother tree is also difficult to keep. A loot of dieback and coarse growth..
Next, I do wire them! In fact I have a sapling from the same batch as yours that is fully wired right now. The secret is wiring the young branches and taking the wire off some three to five weeks later, as they will cut and mark the trunk quite badly. In fact, now I prefer the clip and grow method with them, to keep the nice bark unscratched.
Then, about pruning. I usually leave a small stub because they do die back very often, and then clean the stubs on my next pruning session. As you´ve said, they are perfect to be conducted only by scissors.
Thanks a lot for such nice videos and I hope you manage to propagate them. As you know, they are very, very easy to grow from seeds, and that´s my preference here in the tropics.
Please keep doing this great work!"