The current implementation of jump to next feed is kind of a blunt tool. I suggest the following refinement. When at an beginning or end of a view. Using "j", "k", "L" or Spacebar to go past the border will:

1. Cancel all current and queued keypresses.
2. Show a small notice that the current action will advance feeds. I suggest a colored or gray bar above the first item or below the last item.
3. Add a small delay, before accepting new keypresses.
4. Continuing presses past the border will then advance feeds.

This will prevent incorrect feed changes, an having to manually browse trough items that are marked as read to find an item lost with an incorrect feed change.