: Still working on my CLC kit, bought one of their inlay/overlay
: designs--compassrose--nicely done.

: Question: When should I put it on the deck? Right now I have a seal
: coat only. Should the overlay go under the glass or over?

I would have done it before the seal coat, but since you have sealed it just do it on top of that.

: Also does it make much difference if I use the straight West
: Systems epoxy without thickener ( thinking it might not present
: as much of a squeeze out that is visible if I just use the
: epoxy, any thickener is going to introduce some
: color/cloudiness.

Just straight epoxy. In fact, if not that you have already sealed it you can use regular wood glue. Since you have epoxy coated already then use epoxy to glue it on. Then sand, then glass.

: And while anyone is at it can you give me a simple explanation re
: how the bond gets stronger if we introduce some cabosil or
: sawdust?

Without the fibers of sawdust, cabosil, microfibers, or other filler, then the bond is just the crystaline hardened epoxy which will tend to want to break under stress kind of like glass would break in a line. The filler gives structure to the bond. The fibers criss-cross and give strength similar to how the cloth gives strength.
: Thanks.

: Details details.

The devil is in the details!