werty - 8:59 pm on Apr 16, 2012 (gmt 0)
I asked a buddy (who also moderates here) for help on this and we have never had to deal with the ? before and that was causing some confusion. I will take a look at this and try a few examples out and see how it goes. Thank you for your help!
I would prefer to make it match 100%, but it seems like my server / doc types (? my guess as what is causing it). So I think it makes sense to do the 301 off the bat with a "hey all files now have .html tacked on the end and no longer have a ? in them") Then never look back.
Then if I ever go back to using WP for the site, and can create the permalinks to match this in the control panel.
As far as the SSI goes, is the the thread you were referring to:
I know in the past I have had to include something in an htaccess file to let .html files serve includes like a .shtml file. But that is really the extent of my experience. That is why I figured if I do not change these files to have .html at the end I would be into a pile of confusion when getting those to work.
I think a 1-time (or lifetime) 301 on these existing URLs is just the ticket. It just may be a few weeks for the might google re-adjust and adapt to the changes.