The results of my diagnostics
I can reproduce the 50% failure rate with the starter plugs, plugs went to the trash!
I can reproduce the lack of rooting into the to hot soil. soil has been changed out, plants are doing better.
With this soil I get near 100% with my seeds and Pauls (I am out of his autos and used photos)
This is what I found, corrections have been made and all is well!