The spawn should be more "complete" the farther south one goes, still plenty of time for places like PK and many others.
Males head up several weeks before the females.
Here on Lake Athens, lacking any creeks/rivers to run up into for their spawn, they showed up in great numbers over the 3 Day President Holiday weekend about, what, a month ago, way up in the NW cove.
It was epic. I fished over those 3 days, for about a total of 6 or so hours, caught 45. I don't think a single one of them was less than 15". For such lakes, it is often quality over quantity, less interspecific competition as Richard Ott at TPWD mentioned so they grow really big fattening up in deeper waters over the year leading up to the spawn.
Photo of one of the larger ones next to my 13" boot.
Brad