You need reorder script, and constantly switch priorities:
- After level up at first day do all radicals.
- Then you have 3-4 days to spread ~20 kanji that depends on radicals you gurued in previous levels. I usually try to do something like 10 - 5 - 5 or 10 - 10, because from first group I could forget some and they migrate to next day. In result it will be more or less equal.
- After new radicals are gurued, I usually spread new kanji into 2-3 days, again large and small group.
- Then 3-4 days and you are will get level up.
With this trick you will do level in 7-9 days (depends on do you do first 2 App levels in one day or in two). And this doesnât depend on your speed really. Even with 10 lessons per day you could do this, but vocabulary will collect in huge heap.
So you need more lessons to deal with vocabulary. And here is maths: wkstats com says, that up to level 14 average number of lessons to learn in each level - 180. Starting with level 14 - 150. So for instance I target to ~9-10 days per level, so I need around 20 lessons per day to deal with all 180 elements up to 14 level, then only 15 lessons per day should be enough to go with same speed. And should not be growing vocabulary heap.
On practice here are my lessons heatmap:
Few days I missed few days because of different things (too busy, or I was driving full day on vacation) in normal days I try to do 15-20 lessons every day, and it constantly moving because of reorder script. Really waiting for level 14, when I could do only 15 lessons per day and still have 9-10 days per level
Here is wkstats levels graphs: