Yeah, I had a DEXA scan T 191lbs and I was 16% BF. It's not practical to do this every day, though. But what I've found is that calipers actually do a good job

Yeah, I had a DEXA scan T 191lbs and I was 16% BF. It's not practical to do this every day, though. But what I've found is that calipers actually do a good job at showing body fat changes. They're horrible for absolute values (if they say 12%, they might be off by 4%), even at multiple measurement sites. But if calipers measure more or less, you can still be fairly sure that you have gained or lost fat mass. Measuring like that I found that nothing beats lots of caffeine and plain low calorie diet.