Mike,
In 2002 you stocked 350 bg 70 cats & 70 lmb.
For some reason you thought the fish were no longer there & in 2003 you again stocked 350 bg 100 lmb & 100 cats. Now you are wondering if they are all gone. (at least all but the cats & possibly 1, 2 lb bass & baby bass )
You had pea soup last year.
You have pea soup this year.
Pea soup is bad .. causes fish kills. This point is not speculation it is fact.
Now, some of your fish may have survived, but if most had you should be bass heavy & bg heavy & both should be easy to catch.
If you do not do whatever it takes to increase vis. in your pond to a min. of 12" & do whatever it takes to keep it above 12" it is very likely you will continue this pattern next year. IMHO your fish are already gone.