BG/CNBG should be spawning soon if they haven't already done so. Spend some time and throw in some added structure for the fry to hide in. The only advantage to a massive drawdown is the abundance of shoreline structure it creates as grass/weeds/brush fill in the void. Odds are you will be lacking forage in the 1-4" size.
Our BG have been spawning for several weeks, since early March at least.