Overclockers Online has posted a new review on the XtracPads Ripper
A quote from the article:
XtracPads Ripper Review
The Ripper provided a smooth and consistent surface for a cloth pad and didn't leave any truly negative impressions. I not once had any erratic movements from my mouse and even use in Photoshop was as smooth as you could ask for.
XtracPads Ripper Review