Hi Raul,

not sure if you mean 'to much' as 'too much' urls.

If so, the number of URL's is not related to sh404sef but mainly on your site contents.
Of course the challenge of a sitemap is have as much urls as possible. More urls a sitemap contains, better indexing your site will have.

By the way JSitemap supports exclusions if you need to get rid of some links from your sitemap.

Please explain me better if i'm missing or misunderstanding something.

Best regards

John