We have recently switched to Firebird ink and find it to be more vivid with better washability.
I'm in the east coast as well, what about opacity in their white ink.I'm using Firebird inks as well after using Dupont and haven't had any issues switching over. As you probably know they are on the east coast.
I use veloci jet printers. will have to upgrade just not sure which printers I should be researching.al9232, What printer do you have?