I've replied to a number of threads such as yours over the years per those migrating from a TSU7x00 to a TXU9x00. One of the better examples of this can be found here. Irrespective of which PEP editor you decide to use my reply in that thread will answer a number of the questions you've posted here. In the very early days of the TSU9600 I also posted a highlight reel of sorts per the advantages of the TSU9x00 over the TSU7x00. You can find that thread here. Recommend that you perform some forum searches as well. You'll find a number of forum threads similar to yours here which should be helpful.