[Zope] Use of APE in a production environment?

We are looking at moving to a APE->filesystem implementation in zope 2.7, I've got a few questions: 1. Is anyone using this setup in a production environment - have there been any problems with stability or performance? 2. Has anyone figured anything out to populate the cache upon startup? 3. What has been the performance hit, if any? 4. have you had any problems using subversion/cvs with the objects on the APE/Filesystem volume, especially when using multiple branches for development? Any answers would be appreciated. TIA, -- Kelly McDonald <w4kpm@adelphia.net>