We introduce a new tool "Profi FeedBooster" for professional support of feeds in your server. You would use Feedbooster only in case, that you have a lot of feeds on your web, which differ only in parameter of URL feed, determining f.e. range od data in the feed. Good example can be internet shop, which has independent feed for each department or f.e. operator of server with blogs, where each blog has its own feed.
FeedBooster automatically improves all feeds without necessity to enter each "by hand".
For example:
You have feeds with parameter "cat":
sample-web.com/rss.php?cat=one
sample-web.com/rss.php?cat=two
sample-web.com/rss.php?cat=three
Just create Profi FeedBooster with any global prefix and origin URL sample-web.com/rss.php?cat=%ID%
And your boosted feeds can be readed on URLs:
feed.feedcat.net/global-prefix/one
feed.feedcat.net/global-prefix/two
feed.feedcat.net/global-prefix/three

Please do not use FeedBooster for SPAM (unreasonable inserting of large amount of feeds with no content, with commercial content, or with explicitly oriented content) you are exposing yourself to being blocked to use service.