I enjoyed playing with this. I should do some typing tutor on my new keyboard so that I can get faster at using it. I think a typing tutor is better if it can

I enjoyed playing with this. I should do some typing tutor on my new keyboard so that I can get faster at using it. I think a typing tutor is better if it can re-sync when you have an insertion or deletion error. That is, if you miss one letter but everything else is correct, or if you mash an extra letter but everything else is correct, that is one error, not a full list of errors. It is distracting to have to look at your output to make sure you didn't make one of these mistakes.