Canon EF 24-105 IS L manual focusing – is it a problem?

I never really used manual focusing before, so I only noticed it now:

  • when I switch to MF and slowly turn the focusing ring, nothing
    happens at all. The ring turns and turns but nothing else happens.
  • when I move the ring a little faster (kind of “normal speed”), everything is okay, I can actually adjust the focus.

It’s kind of hard to describe but I hope you understand what I mean. It’s almost the same behavior as described in this post, but with the slight difference that I can achieve manual focusing apart from when moving the ring slowly.

This is my first L lens as well, so I can’t test it with any others.
If you have either the 24-105 or any other comparable lens, do you also experience that behavior and do you think it’s normal?