Here's an updste on my river sand top dressing.
Overall, I'm happy with the results. I feel like it would have recovered better if we didn't have the rainiest summer on record and actually had some sun. It's been like seattle here for the last month and a half. Not ideal conditions for bermuda but perfectly conditions for fungus growth
. It's noticeably smoother to mow.
I'm currently mowing at 3/4" tall. Mowing has slowed down to twice a week now.
As for the pre-emergent. I was planning on prodiamine (split app) but I'm on the fence about using spectacle this year. I'll start in a few weeks.