When a track is displayed in "summary mode", balloon tooltips should probably be disabled, as their contents may be misleading or they may cause errors (e.g., when using AJAX request handlers). Otherwise, a workaround involving semantic zooming is necessary to disable these; e.g.:
[mytrack]
summary mode = 100000
...
[mytrack:100001]
balloon click =
...
Nathan,
I'm wondering if your proposed workaround is better though. If we turn off balloons completely when in summary mode, then nobody can ever use balloons with summarized tracks, and maybe somebody wants to. The improvement I could see though would be to add the ability to added sematic zooming information to the TRACK DEFAULTS section, so if you wanted to, you could turn off balloons for all tracks when in summary mode in one fell swoop.
I agree -- since there is a workaround that works well enough in this situation, it may not be worth the effort to implement a solution that restricts someone from ever using balloons in summary mode.