I wanted to share with you my small experience with Wanikani, and may be help newcomers with a similar background to avoid the mistake I did.
I started Wanikani, like a certain number of people here, with some Japanese background, i.e. I had the JPLT N3 and already learned 1500 kanji or so. I came here to finish the remaining kanji and may be dust off the previous ones, already quite hazy.
As I used the Remembering the Kanji by Heisig, I basicaly skipped the radicals, keeping the meaning I already knew and rushed through lessons, not reading any of the given information, wanting to get as fast as possible to the new stuff.
Now, I realize the mistake I made: the kanji and vocab I learned are quite inconsistent, the mnemonic erratic, barely 90% accuracy on words I was suppose to know, level up ranging from 7 days to 20, mix up similar kanji as I did not properly learn each radical and basically just did image learning…
My realization: half-assed learning give half-assed results (shocker, I know). There is no shortcut to WaniKani, having previous knowledge does not make you go faster and is not an excuse to work lightly. Has stated, effective learning comes with thorough and mindful pratice, not with Kanji review while watching TV.
I therefore decided to just reset my account and restart my journey from the bottom, but doing it right this time !
(this is a personal feedback, your millage may vary)