There are two pieces of information that I only found during my research that he evidently also didn't know about:
* Erase blocks are much larger these days than they used to be. Traditionally, erase blocks have always been 128 KB, but now they are effectively 4 MB in most cases (2 MB physical erase blocks with multi-plane accesses).
* The question whether you should use ext3, ext2 or btrfs for best performance is highly media dependent. Ted showed that there was no performance penalty for ext3 over ext2 on his SSD, but for media with fewer open segments, the answer can be different. This is one area that I still need to analyze further.