Looks like a fat dude on a Grom.
Or worse.....
A bagger on a trailer!
I feel like your margin of error with that pot can be devastating, devastating because you are certainly onto something!
It seems like though it may be growing now, you may hit a critical point when a hot summer, or a cold winter, can make it impossible to recover from.
Enter rare instance where "slip-potting" may be a good next move, the when, I believe should be diligently researched. Though since spring worked before, and better health than then can be rather easily identified, adding a sure rain and wane Repot to that should be successful.
Sorce