You're welcome!

I think the reason subtest SSs appear to have more certain information, but composites are a bit wiggly, is probably a question of compounding unreliabilities. And yes, it would be good if a little discussion of standard error, reliability, etc. were included in test interpretations, but based on the amount of eye-glazing I get when I do venture to introduce a bit more detailed stats into my parent/teacher team meetings, I'd say that many people could just as well do without!

...pronounced like the long vowel and first letter of the alphabet...