Hi Christof, et.al.,
Our user group newletter has yet to come out so I have placed my latest article on my site, Rushmore Optimization for your comments. It took considerable effort, so I am shamelessly checking the forward a copy to these members, hoping you all will give it a read. Included are charts showing the number of bytes used by the deleted tag per number of records, a TestData class generator, and other test info. For those who don't wish to check it out, the summary is, "DelTag, not so good."
Charlie