automatic/overwinding questions

[sigguy]

Have stared at pictures of 3135 movements to understand how
all the parts work together; input appreciated on the following...

I understand the concepts of mainspring slip to prevent overwinding damage
and how the bridle is needed to regulate the friction against the barrel, etc.

Does the automatic winding mechanism typically have enough torque
to fully wind and potentially overwind a watch? Not having actually
handled an automatic movement I don't have a feel for the relative
forces involved; does the rotor usually move freely against a fully
wound mainspring, or does the mainspring resist enough to stop
the rotor?

Is wear on the inside of the brass barrel ever seen or a concern?

Thanks,

Jack