I posted an article on MS BRE side effects yesterday. I had immediately to withdraw it for a few hours because I realised it was incomplete (and actually a little wrong) in one part. Then I noticed I had swapped the legend text on the graph making it appear that caching made things slower, rather than faster! I then discovered today that for the last three years I have been completely ignorant of the fact that you can drag and drop object constructors onto the 'assert' argument in the Rules Composer in order to expolit the built-in CreateObject function! Big red face. I have changed the offending paragraph where I moaned at Microsoft for not providing access to this functionality! Given the number of times I have complained about the lack of comprehensive documentation for BizTalk and related technologies, it is ironic that Microsoft has documented this particular feature very cleary indeed, and even given a brief description of what happens behind the scenes! I am suitably chastened.
The updated article remains at http://geekswithblogs.net/cyoung/articles/111169.aspx. If anyone spots any other artefacts of my ignorance or inattention, do please let me know!