Bill, thank you. Too late to do that today but I will do tomorrow as soon as I get a break from Christmas prep.

Meawhile, I did another test with wood off the fore end metal, everything assembled. Pushed on Right barrel ejector sear right on the L shaped section at its bottom. Nice easy movement and a little click from the sear spring.

Pushed on Left barrel ejector sear on its L shaped section, same test as the other one. Some movement but not as much as the Right one, Left sear is somewhat tight, no click from the spring.