First let me say that I'm no expert. I am a fellow student making progress thanks to this wonderful site. My opinion is that 13 character speed is too slow. I think you should concentrate your character speed to 20 or 25 so that you only hear the sound not the dits and dahs. I set my speed down to 13 just to try before I wrote this to be sure. At 13 you can hear every dit and dah and can get prone to counting which is an impediment to speed. I would rather have a slower WPM speed than a low character speed. Once the characters come into your head upon hearing the sound speed increases are around the next corner. Hope this helps some. 73's
The keep-you-char-speed above 10 and preferably 15cpm is very relevant for learning the chars.
Note lots of people who hit this forum can't manage anywhere near 20 wpm during this process . . .
( others of course report getting to 25cpm / 25wpm in a couple of weeks - aptitude being the main factor , as the military selectors knew . .)
nonag's advice is particular to people who completed 40 lessons in their own way, speeding themselves up whilst converging to having the cpm and wpm both the same speed.
FYI it originates from brushup's post https://lcwo.net/forum/1521 from 2017
Personally I would just listen to lots of morse and get on the bands ASAP, because I don't like doing lessons, especially over again, but everyone has to choose for themselves . . .
This can be a bit of a contentious issue, because quality of morse on the bands varies.
20wpm is not uncommon for a normal QSO with limited information passing across and I'm not so bothered about longer space timings provided the chars are OK and not run together.
This is not commercial morse - it's a hobby - which used to be for the "purposes of self training in radio telegraphy"
I'm not so keen on the lesser skilled/experienced being put off ( the bands) by the purists who can anyway QSY if they don't want to help a learner.
That being said I think everyone should learn morse for when all the computers stop working, and that means there will be all sorts of standards of performance about . . .