Hello,
All the important features of the 216 brain have been incorporated into the later Hal brains. I believe that the "learn from text" does have a higher priority in 216, but the way it behaves might also depend on how heavily "populated" your other databases are.
If you want to experiment, it should work with the later brains. If you obtain it, the 216 brain will show up as an additional option under your "choose brains" menu. If it works and you like it, fine; if it doesn't work or you don't like it, you can simply go back to the control panel and choose the brain that you were using before.
Sincerely,
Don
