The Dual Blade's are made to work in parallel mode, but not sound thin in that mode. I think series might be overkill because of this. The FD3 is a offset linear hum canceling pickup so there is a lot less wire involved when switching form series to parallel. Thus the difference isn't quite as extreme as it is on the Dual Blades.
If you want to put the NPJ5s set in series it should work well. It'll be a very thick and bold sound.
After answering that last question I should point out that we may be talking about different things here. On the ABZ-5 the series parallel setting was probably for both the pickups. When I talked about the Dual Blades above, I'm talking about series parallel for EACH pickup, not both of them.