No feelings hurt here! Ok... so my brush was a tad broad.
My comments about screwin' up the spawn was focused on those fish that dropped their eggs but the hatch has not taken place. No doubt fish just now, or within the last week, coming up to spawn can, and will, adjust accordingly.
But you are correct about the water level in April. It appears, based on historical data from the last 6 years, that 170 seems to be the target level for April.