The roll and tip method of painting will yield a very smooth finish as good a spraying.
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If you are using a mohair roller (foam roller will dissolve in the paint) wrap the roller in masking tape and peel it off, this will remove any loose fuzz and lint before it ends up your nicely painted hatch. Redtree Rollers (Amazon Link) hold up well to the solvents.

How to Topside Paint a Boat | Step-by-Step Guide
A new paint job protects your boat, makes it look great, and makes it easier to clean. Which makes you happy. Lots of factors will influence your choice.

If you are using a mohair roller (foam roller will dissolve in the paint) wrap the roller in masking tape and peel it off, this will remove any loose fuzz and lint before it ends up your nicely painted hatch. Redtree Rollers (Amazon Link) hold up well to the solvents.