Thanks for posting those pix. Wow, that might me a bit much to be top dressing. How long long technically is your growing season? If it's until October, my math tells me you'll be putting 4 inches? Yikes! I'm no expert with warm season grasses, but does this seem excessive to anyone else? Seriously, I admire your plans for such hard work! I seriously doubt you'll need fertilizer! Looks great, nice work!