Snapshot Timing out issue

Using Snapshot Pro in conjunction with Google Drive to manage the snapshots on all our Wordpress websites. Getting the following error with Snapshot timing out.
http://www.screencast.com/t/oB0cBdocG

Tried to increase the max_execution_time from 150 to 300, and also 2000 via .htaccess file, and still, the request timeout error occurs.

It works fine once the plugin folders are excluded when creating a new snapshot. It could be a temporary workaround, but looking for a solution to include the plugins folder without causing the request timeout issue when creating new snapshots.