I'm piceses also, although on the cusp apparently,
But a friend of mine, whos really into this sort of thing, has knocked into my skull that that is only good for the most general of predictions, for anything else, you have to look at your rising, ascending and decending signs, calculated from the time of your birth.
Absolutely - astrology is pretty complex. The sun sign aspect needs qualifying with various other aspects of the chart, according to general astrological theory.
personaly i love dirk gentlys approach, his friend, don't forget used to be astoliger for a major news paper, which lost 1 twelth of its readership, because he always used to insult dirk in his horroscope