There will never be a straight 31 Adamant spread, shiny or non-shiny. The closest thing I personally use is 31/31/31/17/31/31 (used that for my own Ho-Oh, in fact). Perhaps you should try to redo your TID/SID to that spread lol.
No I'm happy with my TID SID I just would have liked to have gotten more shiny legends out of it.