Scrogdor
Chumono
Just tilled it over and put my feet on the pot lol. Would be about a 70% reduction to get it in that pot. Don’t mind the toilet 
I think that pot will be fine… you would want to carefully take away the soil at the base until you get roots flaring all around and make judicious cuts.. totally soak it and get it wet and completely bare root it .. you’ll be able to see roots / base structure that may need pruning .. as above so belowThink it's alright to bareroot this and get it into a bonsai mix? I know hornbeams can take a beating in terms of repotting, but not sure on the rules of moving it straight form such a large nursery pot with pretty organic potting mix into a akadama/other stuff mix. Reduced the root mass by about 2/3s. Might end up cutting down it's original pot, Doesn't quite fit in this 13.5" training pot lol
Are you ok with a scar there forever? These just don’t heal well, especially in a pot.is this a bad idea?
I don't see the reason to. You've got decent movement and taper as it is. Do you just want a shorter tree?is this a bad idea?
I can see why you are considering that move. However, how about looking at changing the planting angle as part of the solution. The tree has a number of scars needing time and skill to improve. I just picked up on this thread and found myself wanting to find a better trunk line early on in the thread. The last section built seems to carry on to far and straight so I can see why you might want to shorten it. In a case like this it might be best to make a number of smaller changes. Planting angle/ less of a chop ( smaller scar) combined with a thread graft for optimum branch placement. Caveat here I have not worked with American hornbeam. But have had no difficulty with thread grafts on other hornbeams.is this a bad idea?
I can picture it, Not a fan of " hollows " . I am old school where creating a hollow results from poor development or disease that went unchecked in field grown stock. I understand it in species that are difficult to grow out without common issues such as Mume. the main reason why they are a species with a lot of carving on the trunk. That should not be necessary with Hornbeam. That being said.All good points thank you! Another idea I had would be to approach the front from this angle and turn that large first heavy branch into a hollow if you can picture it.
That's understandable, this tree definitely went unchecked as a field grown specimen for a while, hence the already big holes it has. However, I do like the style incorporating uro in bonsai. I have a yamadori north american hornbeam that has 2 or 3 natural "hollows", so they do occur in the wild.I can picture it, Not a fan of " hollows " . I am old school where creating a hollow results from poor development or disease that went unchecked in field grown stock. I understand it in species that are difficult to grow out without common issues such as Mume. the main reason why they are a species with a lot of carving on the trunk. That should not be necessary with Hornbeam. That being said.
Lots of people use that approach to fix problems.
They sure do. Lots of diseased and damaged trees in the wild. I just do not normally consider them as collectable or desirable. Unless of course the shari and jin are outstanding. Bit that is different from trees that have rotted out inside or have active infestations or infections present.That's understandable, this tree definitely went unchecked as a field grown specimen for a while, hence the already big holes it has. However, I do like the style incorporating uro in bonsai. I have a yamadori north american hornbeam that has 2 or 3 natural "hollows", so they do occur in the wild.
I also seem to recall a thread by OP about moving to California from the east coast. There's value in familiarity, not in the sense that cultivation will be easier, since it's an unfamiliar climate, but for the sentimental value of plants that remind people of home.