I am looking to update my older 4pks-r to the 4px and have a couple questions.

1) Is the grip vibrations on the 4px and better than the 4pk? The vibrations on my 4pk are very weak and really not even usable.

2) Does the voice output on the 4px work with the timer? I have been trying to find a video of the voice output and cannot seem to find one.