Mad respect for Graham Potter! I think it just comes down to what works. I know, that for me, sweating works like a miracle for hawthorn. And the soil they grow in around here is super heavy clay. If I can get rid of it right away, I will. And I can easily do so with this method I use. I also look at it as capitalizing on this moment in time where this hawthorn will be the most vigorous it will ever be, the moment of collection. It’s always going to be less vigorous after it’s been in a pot for any number of years. Meaning it will probably give me the strongest response to root pruning it will ever give me, right after collection. If I have to go back in and slowly correct the roots over many years, that is taking years away from the development of the tree, I’d rather cut back really hard, wash it out, and then not have to bother the roots very much at all, besides minor trimming, ever again.G potter has great success in collecting hawthorn. he's another who doesnt completely bare root/hose off the tree after collection. he did an article on this quite recently
im in the same boat, i would remove most of the field soil by hand and leave a little something in the roots, that the tree was previously used to. i dont usually bare root nursery trees either.
I understand my method isn’t going to work for everybody or for every tree though. At the end of the day it’s whatever you have to do to make it work!
Fantastic article by the way. That thing is a beast!