Interesting comparison between McCluggage and McGrath here - http://www.afl.com.au/news/2018-08-07/the-stats-files-whos-top-of-the-2016-draft-class
This was also a theory I hadn't heard publicly before...
Yep, similar train of thought for the Bushrangers draftees. At one stage they were only training together once a month due to distance between them (few years back now).
Some of those zones are ridiculously big. I know some of the Geelong Falcons boys are traveling hours for training as well.