So excited to see the forum back! I missed this amazing resource. Last year, I purchased this Aka Shigatatsu Sawa from a good online acer specialist nursery I'd used before. I duly repotted and set about uncovering the rootflare. I found that the rootstock was quite a severe L-shape, and had been planted so that half of the bend was buried. This must have happened quite some time ago, because there were lots of thick roots growing parallel to the buried trunk. Thinking this couldn't be good for the tree's long-term health, I removed most of those roots and re-exposed the buried "horizontal" trunk, repotting it as "upright" as I could. It didn't grow much that year. Here is how it looks today - it is budding out. As you can see, I left one " prop" root, and there is a clear lean to the repotted tree. I am hoping that grafted top section will branch out to the right in time, and acquire a sort of interesting twisted shape. I would be grateful for any advice (this is only my second potted maple). Thank you!