I gave her a 30min soak, a good rinse and then a bit of work with the CLR metal polish. It got most of the staining off, except for some hard to reach places, which means the temper's fine. After another rinse, I worked her over on the Japs. Couldn't resist shaving with her.
The Satinedge definately needs more work on the hones. Even though it removed the worst of 2 days worth of growth, she still left too much after 2 passes and going against the grain was impossible.
Therefore, I'll do a couple more pyramids tomorrow and test her again. For now, she's not performing nearly as well as Taylor's.