Collected field maple - trimming question

Hello everyone! I will be very grateful for helping me with this little confusion.

This year I've collected that ca. 30+ year old field maple. As you can see it was hard pruned leaving just naked trunk alone. From one month later up to this day it was normally fed and watered adding sometimes some seaweed extract or biostimulator etc. It seems that especially one shoot is growing on a very strong sap path (it became twice as thick as the other shoots) so I've trimmed it down to one leaf pair (still growing strong). Some apical meristems from stronger shoots were removed. I also pinch the biggest leafs every now and then. No wiring.

My question is could/should I trim all top and middle shoots down to 1-2 leaf pairs now or let them grow, heal the wounds and trim them in next spring? I am confused because I've read in a book that I can trim the shoot which has reached to 4-6 leaf pairs but don't know if it is applicable also in such case (collected naked trunk tree).

Thank you in advance

Height: 63cm
Trunk diameter: 33cm (measured above the biggest right-hand root)


Collected - 04/16/2011

Top

Roots

05/28

06/22

I would probably let the shoots grow for most of the season. Your first trimming evened the energy out a little so you are getting growth in all of them. Now let them grow to heal the wounds, gain some size, and promote strong roots for next year. This fall after leaf drop you can cut them back to 3-4 nodes to make the tree easier to handle for the winter (leave a little long to allow for winter die back). In late winter you can then cut back to 1-2 nodes to start developing ramification. This might have to be repeated a few times to get good taper of the branches and apex.

I have a large trident that I cut back last year and let the top run to about 1.5 meters tall and over 1 cm diameter. I am letting the shoots from the 2nd node run again to fatten it up and heal the large cut back wound while starting to train the 1st node as the new leader next year. It was repotted this year which slowed it down a bit, but it seems to be working.

Marty thanks for your trident maple description. Probably I will just let it grow and do as you said, thank you!