Have you tried the writeShield screen protectors at pocketpctech.com? Pricier that many, but it adds some resistance to the screen along with a neat perfect fit. Helps with glare too. It's what I use and I have a friend who also loves his.
I'm not sure exactly what the feel of the Fujitsu screen protector is, but it's worth a shot. Also, switching to felt nibs increases the resistance a little (link: http://wacomdirect.wacom.com/wacomdi...95&sku=PSIA043).