I must admit we haven't tried using neo in anything yet-we do keep a set for de/re magnetising.
It's chicken and egg really, when I come across an application, I'll explore it.
Generally neo is very powerful,very cheap and readily available but I'm so loving the tone of the unpolished Alnico IIIs/ IVs and Vs we've had produced, I can't imagine using anything else-their tone is so instantly classic and balanced and they're lovelly to work with too. Cheap they're not and to a certain extent each one is unique which is something I really like-to bring individual character to each pickup within it's spec.
