I went a tad off script from the instructions, which next call for the builder to use epoxy and flox to fill the cleco holes that held the vents on and also fill in the whole that the angle positioner on the nose was clecoed into that held the cowling at the right height in relation to the spinner plate.
At some point, I'm told the instructions suggest you add filler to the gaps to create a "one piece" look on the top cowling, so I figured I'd just do it now for kicks before bonding in the NACA vent next.
This time, I used glass bubbles rather than flox because it sands a little easier. I used electrical tape to mask off the edges and then added the filler.
A day or so later I took them off and sanded first with #80 grit. There's still a little depression and this really calls for SuperFil, which is really easy to sand and work with. But my containers are expired (I bought them in 2013, according to the date I'd scribbled on the bottom of both containers) so I've ordered some from Aircraft Spruce.
In the meantime,I guess I'll get started on that NACA vent next.