Methods are provided for testing a honeycomb body comprised of a core portion comprising honeycomb cell walls and a circumferential skin portion overlying at least some outer honeycomb cell walls. The spatial light modulator includes a first substrate comprising a plurality of electrically activated electrodes and a bias grid and a standoff structure coupled to the first substrate. The lumen has a diameter large enough to slideably accommodate a standard guidewire. The dynamic netlists can be loaded and used in the emulator without having to recompile the entire design, which could take many hours. The light-shielding layer has a plurality of first light shielding partitions extended along a first direction and a plurality of second light shielding partitions extended along a second direction perpendicular to the first direction.