RMPP pen nib replacement time

FYI I have had my RMPP for 3 and a half weeks, and today I needed to change the nib. It wasn't totally mangled, but over the weekend there was a noticeable degradation of the feel when writing and it became significantly less precise.

I have used the tablet about 1-2 hours a day, except for on Friday where I was note taking for a whole conference. I am a heavy-handed oaf, and suspected that I'd go through nibs more quickly than most.

Your mileage may vary.