It's possible to be more than one "ian" at the same time.
I'm very Neptunian, but also Plutonian - though not always in a very overt way.
I scored 45 on the test, it would be 50 if I include the very wide square between my venus and pluto (most astrologer wouldn't, and Donna certainly wouldn't), but my stellium in the 8th is Venus-ruled (libra).
My chart:
Sun biquintile Pluto - 2
Merc trine Pluto - 5
Mars conjunct Pluto - 5
Saturn conjunct Pluto - 5
Neptune sextile Pluto - 2
Pluto in 8th - 5
Moon in 8th - 5
Jupiter in Scorpio - 3
Mars in 8th - 3
Saturn in 8th - 3
Pluto in my stellium - 5
Pluto square PoF - 2
= 45
Funnily, I only score a 15 for Neptune on this test, even though my sun is in pisces and square neptune! I think these point systems are a little too simplistic. Just sayin.
There are people I've met with a single Pluto conjunction to a personal planet, like moon or sun, who come across as more overtly Plutonian than I do. So there are variations in how it is expressed. But I do feel my Pluto, no question, and it tends to come out the most in my relationships. Fun times!