This is the 8th week i have been using the cutting calc you provided and all the numbers are pretty much right on. My body type is Endomorph and the stats are as follows.
12/21/05-
240lbs
35% BF
158lbs LBM
84lbs fat
48inch waist
As of today
2/16/06-
225lbs
25%BF
169lbs LBM
56lbs fat
41inch waist
According to the calc. i should be 223lbs but at 30%bf. All in all its pretty accurate as far as weight goes, i keep gaining alot of muscle though so the bf% is off.