Taro on the other hand studied the Cotten Fist.  Now there
wasn't much refference to his training, but I think that what he did
was learn all the techniques Cotten Fist had to teach, then he stoped
learning new techniques, and instead focused his efforts into improving
the techniques he already knew.  What makes him dangerous therefore is
the fact that he has a somewhat large collection of techniques all of
which he uses at a levil of skill greator than anyone else in the
series.  That's why he's so arrogant about not needing to learn Chi
blasts, because learning something beyond the techniques he's been
working to master would be an admission that his chosen learning style
isn't the best one.
So, does that make sense?

#1: Taro fights dirty, very dirty. His skill is based around exploiting
every weakness, he uses only the force that is needed  ( unlike Ranma's
Amaguriken and Ryouga (nuf said)), he trys to anger the person he is
fighting ( the more pissed you are the less control, the less control the
more openings.), and he also is very fast.

#2: He doesn't use ki blast because he is arrogant... he uses them because
he can change into a 30ft tall monster (why waste the time learning a ki
blast that can blow out walls when you change into a monster that can take
out a hose in 1 hit when you get wet)

Psycho Sam