Just came across this today, and WHOA! what a difference the Jetstream Pads make!
I have a few different sanders ranging from brand spanking new, to those that are as old as 2006/7 and while no Festool performs poorly, I have noticed the Jetstream padded sanders tend to do a better job... This youtube vid sums it up well 8) (now I need to go order some new pads and abrasives :
HTC TOOLS Festool Sanding Pad Jet Stream
I have a few different sanders ranging from brand spanking new, to those that are as old as 2006/7 and while no Festool performs poorly, I have noticed the Jetstream padded sanders tend to do a better job... This youtube vid sums it up well 8) (now I need to go order some new pads and abrasives :

HTC TOOLS Festool Sanding Pad Jet Stream