Got all but 1 panel up, pretty straight. Last panel will cover the junction box. Thought I had a bad panel, but it was the installer who forgot to plug in one panel
System is really cool, all 13mm and grounds the panel to the rail. Ground tab on each section. I have #10 stranded for the power and #8 solid for the ground.
With 9 panels up I get 480v, about 50v with no load. Under load they are rated for about 45v. Inverter (4000watt) will take 600v so I will be fine.
Thought I had a bad panel, but only cosmetic. Shows full power and no breaks in the surface.
Now to run the conduit through the attic and up through the roof. Trick is to turn the conduit up 35ft from the vent area.