Recommended Timeout length for Google Analytics session settings?

[Stuart Wright]

In Google Analytics, we have
Admin -> .js Tracking Info -> Session Settings -> Session timeout.
The default is 30 minutes. Should I/we set it to 15 minutes to match Xenforo?

 

[digitalpoint]

The only thing it affects is reporting in Google Analytics... so it's really how you want to view reports. Like do you want someone going to 1 page and then a 2nd page after 20 minutes showing as 1 session with 2 page views, or 2 sessions with 1 page view each?