We love the Sericol Fluoro Pink and also their green, right out of the bucket with around 3% activator. Not pumped about the Sericol yellow though and with fluorescent yellows yes, we do tint back with yellow (and even a touch of blue or green, depending) pig to get a stronger look.
The CCI D-Flo blue is indeed a nice, clean blue but it's not a neon blue by any stretch of the imagination, better off mixing a different pantone for a really neon looking blue.