agviz
How do you think BOTA cards would hold up to Copic markers? They are refillable, and have an awesome color range, including neons.
I would assume that they would hold up well, although as always a test would be good. I'd also confirm that the Copic fluorescent colors do indeed glow under black light (assuming you want to maintain that look). Some products that say they're neon or fluorescent don't glow under black light, but are labeled to indicate that they're especially vibrant in normal lighting.
If you do try Copic and they work well, please report back!