As I see it, frequently a person will express more of their Moon sign, than the Sun. I suspect this would be the case for you, since your Moon is backed up by a lot more Scorpio energy, thus that would tend to be expressed more readily. Meanwhile the Sun sits alone and is modified by the squares of Uranus and Neptune. Also since the Moon rules the ASC, you would express more through the water element, which serves to dominate your elemental balance.
I do think there is a traditional rule that speaks about this differentiation between the Sun and the Moon, but there are also other things to factor in.