I'm nervous about hooker too... Albeit primarily from a lineout perspective.
All the reports I've read about Alfie at age grade caveated that his excellent performances also included some shaky lineouts.
We've seen a couple of iffy ones from Gaby too.
I'm hoping that the pressure of final and that last minute lineout will improve him.
However, if they aren't easy fixes, then lineout becomes a problematic platform