Mike, Thanks for the pictures and response.After closer inspection it 's hard for me to say I found any root rot.Maybe in a few I noticed a little threading on the ends of a few but also on some like the picture I couldn't find anything wrong with the roots.I think on some I would have expected more roots than were developed .

It doesn't look like any signs of root damage from the pictures but it would be good to see some more root mass as you mentioned.

Have you checked your EC levels? What is your fertility program like?

Thanks!