[Zope] Good Object Stores to Load ratio?

I have read a lot of Plone/Zope books but never found a any advice on a good ratio when it comes to the Recent Database Activity Chart. My Zope intances (10+ sites Plone/CMF) gets over a 100,000 hits a day and I have it running on two threads each with 60,000 cache items. I run an adbanner product that does a lot of writes (views/clicks) so I know it will never get too low, but after a day or so I see the following in the chart. 2,802 - Object stores Total 1,406 - Object loads Total 6,905 - Connections Total Which gives me about a 2:1 ratio when it comes Stores:Loads which is about as good as I can get it. So, my question is, is that good? bad? Anyone care? What are others seeing? Thoughts? Jake -- http://www.ZopeZone.com