Drupal 7 and PageSpeed The Apache module PageSpeed provides various optimizations for HTML, JavaScript and such, which is great.

However, some of its features are redundant with Drupal's own aggregation and optimization methods. So has anyone tested which filters would be useful for a typical Drupal 7 website and which would be useless due to Drupal already providing support for it?
This is the PageSpeed section from my .htaccess:

&lt;IfModule pagespeed_module&gt;
    ModPagespeed on
    ModPagespeedEnableFilters extend_cache
    ModPagespeedEnableFilters collapse_whitespace
    ModPagespeedEnableFilters combine_css
    ModPagespeedEnableFilters move_css_to_head
    ModPagespeedEnableFilters remove_comments
    ModPagespeedEnableFilters inline_css
    ModPagespeedEnableFilters rewrite_javascript
    ModPagespeedEnableFilters insert_img_dimensions
    ModPagespeedEnableFilters rewrite_images
    ModPagespeedEnableFilters rewrite_css
&lt;/IfModule&gt;


Whilst there is a little overlap with the js and css compression, I'm not seeing any negative results. I've set Drupal 7 to aggregate and compress CSS and JS.

The site isn't particularly high traffic though.