My turn to not read properly, in fact I completely missed your updated post and just took a bunch of pics to show that I'd actually done all that! . Yeah I was thinking more of spraying on some Gas+ overnight then putting the metal tab in my large vice and give it a twist in the morning. I also work on old Harley Davidsons so freeing up frozen parts is a necessary skill with those! . I needed you input so I didn't break something like a hidden pin or key-slot etc.. Thanks again for the help! I'll get out of the way when it starts to give!

Huh, still can't post proper attachments, bummer, sorry about that!