For 'bigger' read 'more comprehensive, detailed', etc. There's no way to shrink it in the Free version without reverting to text logging.
The commercial versions have various options to limit what is actually logged (they are visible on the Log settings page in the Free version, but not enabled). There are also options (ditto re visibility) in the commercial version to Zip them before emailing them, but not in the Free version.
The commercial versions have various options to limit what is actually logged (they are visible on the Log settings page in the Free version, but not enabled). There are also options (ditto re visibility) in the commercial version to Zip them before emailing them, but not in the Free version.