Going over older topics (Just noticed “Unread” tab, with all “tracking” topics xD 
:D) and found this gem:
If someone is long at WK, and I’m doing very slow 5 lessons a day and I’m already “burning” items - even though I’m not at the level I would be somewhat capable of reading (I’d say around levels ~13-15?) I’m already in a stage where I would loose all the subtle nudges for the burned items…
Again: optional and with long delay periods woud be awesome <3