My Mushkin dropped from about 26 down to 9 - 10, but maybe we're misinterpreting. Maybe even 50+ is nothing on a 120GB drive. If my drive peaked at 27, and the 120GB Force 3 peaks at around twice that (as in that's the high water mark before it drops back down), then perhaps that's normal.

I haven't seen much in the way of interpreting Wear Range Delta.