I agree, in general you'd use these, but to be fair to XML::Generator::DBI, which to the best of my knowledge you cannot take advantage of these features, I kept them off. Given the baseline performance of the DBI/print system, which did fifty iters without blinking, I would suspect these tricks would only slighty improve the non-XML systems (which all were faster to start with).

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Dr. Michael K. Neylon - mneylon-pm@masemware.com || "You've left the lens cap of your mind on again, Pinky" - The Brain
"I can see my house from here!"
It's not what you know, but knowing how to find it if you don't know that's important