To grow huge bass additional forage species are often suggested. However, it sounds like you will be happy with "average" bass growth so there is really no reason to add shad, etc if you don't want to. I would consider adding a small forage fish like mosquito fish or fathead minnow. They will help your pond get started right and they never become a nuisance.

I am not real comfortable with the stocking numbers and timing. Hopefully someone else will chime in with the rationale behind your states' recommendation.

BTW it helps if you provide at least a general geographic location. Best practices in the north a lot different than those in the south.

Good Luck.