Conclusion
Semantic Classifiers by themselves generally contribute
very little to understanding the meaning of a word.  (The
classifier at best can only provide a “category”.)
The phonetic element is more useful and can sometimes
help determine the pronunciation of a word.  (however,
there are many problems and exceptions)
phonetics often have multiple pronunciations.
each syllable can be represented by many different phonetics.
the practicality of using the phonetic element is questionable
simply because there are approximately 1,260 different
phonetics used to represent 6000 of the most common Chinese
words.
When used in conjunction, the semantic and phonetic
element provide a fuller understanding of a word than is
possible in alphabetical languages.