Sandboxing of new pages on old site?

[chaneguye]

I have found since Jagger new pages for my site are not showing up in Google as they did before Jagger.
Before the new pages were showing up well after about 4-5 days. Now new pages are showing up after a week but can only be found for minor keywords.

This has got me concerned that there is a sandbox effect on new pages on older sites.

Does anybody else notice this effect?

 

[freeplusac]

The original description of the Sandbox Effect is a new site that had gained some good SERPs suddenly lost them all and was sent to oblivion.

 

[stevenhighman145]

If the age of a domain caused the sandbox effect we’d expect to see all of our test domains that are over a year old to rank much quickly than a newly registered domain. We didn’t see this at all, there were differences but not due to the age alone, but the PR/links to the domain