Great, heartfelt video.
The first condition of learning is…humility.
I think Peart’s timing and space got better something like this: Trains under drum guru Freddy Gruber > Switches to traditional grip > Gains a little smoothness but loses a little vitality and power > Trains with Peter Erskine > Switches back to matched grip with a finished, polished quality to his rock drumming…with the power added back in to his signature voice.
All in all a class act and perpetual student of the instrument. A rock drumming legend and pioneer, not to mention outstanding lyricist.