Hobie 16 EPO Rudder 1 Side 2 - Exposed Core

Here's what the unsanded rudder looks like.  Is the core really supposed exposed at the top like this?

They are in pretty rough shape.  Here' the bottom edge:

After a sand with 80 grit pads on the orbital sander, here's what the other rudder looks like.

You can see that more of the core is exposed now.  I haven't taken the edges down to where they need to be yet, but here they are so far:

For the last set of rudders I restored, I used 3 coats of fiberglass resin; the first clear, the second two with the graphite filler, all applied on the same day.  I hope that three coats will work with these rudders, we'll see!