First an editorial comment: I am a devoted CLC customer and friend. The folks at CLC are awesome; for example they will replace any problem parts at the drop of a hat. The build manuals are exquisite and astounding in detail/quality. Any comments/suggestions I make are just well meant tips from an old boatbuilder and CLC devotee. There is NEVER any attempt to contradict these awesome build manuals which are unequaled in the industry.
Installing the hatch bezel: I suggest installing/filleting/glassing the hatch bezel in one move to avoid the sanding of fillets. This would involve replacing the lead weights step with CA glue tack welding the bezel to the roof and rounding all bezel exterior corners/sanding the bezel on the workbench in advance. To insure proper centered and square positioning of the bezel on the roof for tack welding, I would suggest tracing a pencil line around it during the dry fit. The fillet will cover the pencil line.