"He who marches out of step hears another drum." ~ Ken Kesey
I might be in the minority here but I absolutely do not like printing black in front of an underbase or flash for that matter. Maybe it's me but damn near all the blacks I've run over the years flash so much faster then any other ink that for me it has created problems. Also flashing the black I've seen draw heat from the flash down into the pallet faster creating the pallets to get hotter much faster and harder to control on long print runs. For me personally I just avoid printing black first or before flashes for those reasons. I would run that print above all on murakami s mesh 225/40 for sure though. As long as art is good, screens proper, and press settings controlled should be able to have super clean crisp prints.