I've played through FFVI three times now, and one character I never use much of is Gau. Part of the reasons behind not using him are that I don't know which rages are most effective and some of the attacks he does aren't very well explained as to exactly what they do.
Here is what I know about Gau:
In early WoB I use Stray Cat (exptremely powerful) and Hazer rages (Bolt 2). Late in the game I'm stuck to only using stray cat, because its the only Rage I've found to be effective at high levels. I've looked through the list of rages provided on this site to get an idea of what I should be looking for and I have some new ideas (ie SrBehemoth for fire3 spell).
Here are my questions:
What are other more effective rages for Gau?
What is more powerful, Giga volt or Bolt 3?
What does Flare star, Step mine, overdrive and gravity mine do and how useful are they?
Any help would be appreciated.