For the last few months I've been reviewing and researching ways to recreate the acoustic tiles on submarines for a LA 688 class 1/350 kit. To be more specific, here's a close up of one of the subs with said acoustic tiles:
... the closest resolution I found with this modeler online:
... I've looked into making custom stencil (too small to make for this scale), creating a foam/sponge cutout, to a pain staking masking process, or even perhaps using a knife to make light cut lines.
I'm real interested in other possible methods out there 