No mention of .inputrc? An explanation of the kill ring would be nice. Readline is great but I've been running into something that's driven me nuts for a few

No mention of .inputrc? An explanation of the kill ring would be nice. Readline is great but I've been running into something that's driven me nuts for a few weeks now. I recently switched to editing-mode=vi and it seems to have changed the behavior of unix-word-rubout(normally ctrl-w). In emacs mode, unix-word-rubout seems to append to the kill ring. In vi mode, it only replaces it. So in emacs mode, I can eat several words with 'ctrl-w' and paste them with 'ctrl-y'. In vi mode(after setting up the mappings), 'ctrl-y' only pastes the last rubbed-out word.