TS5249 After reverting back to Garageband 6.0, I find that I still lack all the Garageband Effects (Distortion, Vocal Transformer, etc.). The Garageband 10 "AU" plug ins are there instead. I need help getting the old effects back.

Question

After reverting back to Garageband 6.0, I find that I still lack all the Garageband Effects (Distortion, Vocal Transformer, etc.). The Garageband 10 "AU" plug ins are there instead.
For background: I lost my v6 because I had to reformat my whole hard drive. When I reformatted I lost GB and everything else I had. I downloaded GB (unaware of the awfulness that is v10) from the App Store. The fact that v10 does not have all my favorite and most used effects from v6, I uninstalled v10 and redownloaded v6 from my App Store Purchases. I load up v6 only to find that all the default effects are there for each instrument, but when I go to add an effect (i.e. Distortion, Vocal Transformer, Flanger, etc.), instead of the list of classic effects, there's the list of awful AU effects from v10. What gives?!

Answer 1

I don’t have this issue, but I am looking to learn about which parts of the old GarageBand can safely migrate to the new GarageBand 10. 
(Personally, I like most of what changed in the new version.  I sorely miss a few features, and I submitted some detailed feedback.  If you think similarly—or if you hate the new version like babygotbackup—do the GarageBand community a favor, and send in your own feedback!  From the menu, select GarageBand ▶︎ Provide GarageBand Feedback.)