The main reason is that the s/h pellets keep the pot much cooler than I anticipated. With our cold winter and my "makeshift" greenhouse, I can't keep the greenhouse really warm enough to suit this Ascda.
So I pulled it out and put it in a teak basket for now and I'll re-raft it in the spring (maybe).
I inspected the roots when I pulled it out and they looked okay, but they had definitely stalled a little (probably due to the cold).
I definitely think that if I had a more temperate (even) climate that it would do fine in s/h.