You may be able to post on the Ambry board for Steve's imput.
Here's what I found...
<a target=_blank class=ftalternatingbarlinklarge href="http://www.genet.sickkids.on.ca/cftr/MutationDetailPage.external?sp=132
">http://www.genet.sickkids.on.c...lPage.external?sp=132
</a>
711+3A->G
Region intron 5
Other Details This mutation was identified by SSCP and direct sequencing. This was detected in two out of 23 unrelated CF families of Albanian origin, giving a frequency of 4.3% among Albanian population. BOth patients carry the [delta]F508 mutation on the other CF chromosome.
From what I'm seeing, its looks like its considered "classic" CF. I'm glad your son is doing so well, and hope he continues to do so. I have a friend who is in his late 40's with double delta F508 and he's got very minimal symptoms still -- but his brother died at age 14 and was very ill all his life.