Nice to hear from you, Lucky!

Si, Vo, and MR would all still be 18s, based on those raw scores. I think you may have been reading the extended scaled scores from the age 6-0 to 6-3 tables, instead of the appropriate table for his age at time of testing.

The reason two 18s is enough to check is because at certain ages, some subtests max out at 18. But that's usually for older students.

So your DC's original scores are the correct ones. And, of course, they are still plenty strong!

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