Augie,

Those HSB look pretty nice and fat to me!

I believe relative weight does vary over the course of the year. Those two fish might have been at 104% in May.

I suspect they may have restricted their consumption lately since your pond certainly has warm, low dissolved oxygen water right now. NOT the preferred conditions for your HSB.

Does one of the experts have a simple chart showing how relative weight varies over the course of the calendar year?

[If you post it here, I will make it into a new post so it will come up in people's searches.]