I'm trying to symlink parts of my Application Support folder off into Dropbox so I can share between machines.

In doing so, I noticed some rather odd behaviour. My belief was that TextMate2 used the ~/Application Support/Avian folder for everything you install and all it's deltas but that it still loads items from ~/Application Support/TextMate so that you can pull your old bundles/plugins etc. from TextMate1.

However, there seem to be inconsistencies. When I double click a .tmbundle file, this seems to be installed into the Avian folder but when I double click a .tmplugin file this goes into the TextMate folder.

Am I completely misunderstanding how this stuff works? Which of the folders is it I need to symlink out, or both to be able to share between machines?