true to an extent (about performance), which is why I used the qualifier 'probably'. I should have said may instead! I think Eliot's comment sums it up pretty w

true to an extent (about performance), which is why I used the qualifier 'probably'. I should have said may instead! I think Eliot's comment sums it up pretty well: https://jira.mongodb.org/browse/SERVER-2407?focusedCommentId=52733&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-52733 https://jira.mongodb.org/browse/SERVER-2407?focusedCommentId... @rbranson - if you have thoughts on ways to improve, please do add them to http://jira.mongodb.org http://jira.mongodb.org :)