@dj3ei @OH3CUF @Ea5iyl Hmm I was going to say that the best thing I did was learning characters by reading them as e.g. dadadida or didadidit. If you read that aloud as if it was a word it's quicker than 12 wpm. That way you don't use dots and dashes anywhere. Everything is sounds.
I learned the letters like that from a 70s or 80s edition of the Jahrbuch für den Funkamateur.