Was this done because the original wood was thicker than the new laminate you were adding?
What thickness laminant did you use?
What gap are you talking about here?
No doubt! Beautiful work!
I did this because of the damage and resulting uneveness of the underlying fiberglass after removal of the original laminate. I surmised that I would need a good level and even substrate base to properly secure the new laminate to.
The laminate was 3/32". That put it slightly higher than the surrounding frame and I just feathered the edges of it to have it meet the frame level.
There was a very slight gap between the outer edge of the laminate and the inner edge of the frame. That's what I filled. When I masked for painting of the frame I put the tape just inside of that gap and then effectively painted over it so it wouldn't show.