"I couldn't imagine what he means, since I have been taught to rise to toe on 2 on heel lead straight SQQ timing - and that is all the rise the measure gets. Moore doesn't mention this in his book - yet Irvine's picture is all over earlier editions. I'm sure Irvine reviewed the book"
Miles - you will understand it a lot better if your ignore quickstep's mistaken posts.
The accent Irvine is talking about has nothing to do with the rise. It is more the timing/attitude of the step. This is the one step that is really "nailed" to the music, while all the other float to a position that is comfortable rather than mathematically precise.
In terms of rise, although the book talks about the deliberate rising action, there will be an incidental gain and then loss in altitude as the legs close at the end of step two and reopen at the start of step three. Alex Moore chose not to talk about that, but it surely happened to him. Len Scrivener on the other hand did choose to talk about it, and took exception to Moore's failure to mention it in his explanation of rise and fall. It all depends on if you consider this incidental change to be part of the rise and fall, or if you consider only the more deliberate foot and related actions to be rise and fall, as Moore has done.