It doesn’t look like much has changed. Or feel like it.  However, I got most of the furring done.  I had to use a RotoZip, a reciprocating saw, an electric stapler, a hammer and a screwdriver. Oh and a table saw, sliding compound miter saw, electric sander and drill.

Here’s where the RotoZip came in handy:

That tool just cut right through those nails in seconds. Handy!

That wood is warped and twisted every which way. I used many thicknesses of furring to flush it out.  And then re-did it when I couldn’t drag a straight edge all the way up across multiple 2x4s without gaps!  Still can’t (quite) but it will have to do.

Now I may have to redo it because the lip has a slight angle.  I set the furring flush with the top of the lip, not the bottom. -sigh-