[s-cars] Waste gate cap - spring screw access question

[Dave Forgie]

II tried posting this earlier today but the list was apparently down.
Like Chris Chambers I decided to try turning down the wastegate a few
turns.  So I go out the car to drill through the thin cap insert and
then remove the epoxy so I get at the hex head of the wastegate
screw/bolt.  WRONG!!!  It turns out my waste gate cap is solid, no
removable center
cap and so far no epoxy plug underneath.  Mine cap is solid aluminum and
I have no clue what I am drilling through. (already 4 mm or so).  So two
things:

1) I am curious to find out whether I am unique or not with this solid
cap and
2) anybody with a photo they could send showing me the back side of the
solid or the removable center mini-cap cap. (you know what I mean).  I
need to "see" what I am doing - I may have to take this cap off and have
center machined out and or threaded for a plug (like the X plug on the
powersteering pump).

Thanks in advance.

Dave F.