Good growing John! Very pretty!
I know how you feel about trimming them down. I felt the same apprehension, but I did it in late Feb 2016, while plant is still dormant. Trimmed off some roots and some branches, really felt nerve wracking, don't know if I done right about it, but it did well come summertime. I had to trim off some roots, since I want to keep it in the same funky container it is growing in, too many small roots, got to allow some room for the new soil.