For the interested, I find my 2 yr old Tanita scale, while adding another number to my log book, is difficult to pay attention to. Below about 7% BFI, the number is unreliable. It's especially sensitive to hydration. It's best if used to keep track of your diet in the off season, or if you're over weight. If you're already at a high level of performance, you shouldn't bother with this product, it won't be helpful. I would recommend this product to people just starting out. Women might also find this useful, maybe more so then men cuz of naturally high BFIs. Low BFI in women (and some men) can cause problems, and having a number to track in a log book might help ease insecurity or diet issues.
Just remember it's all about performance, and if you can save 1000g on your body, then you wouldn't have to buy that fragile 65g carbon fiber saddle and bust your balls. You could opt for the extra padded model, and laugh at the bone head standing up every five minutes during the race cuz his crotch is burning up and slowing him down. But we should not forget the other end of the spectrum, too low BFI and your metabolism gets messed up, and you can't recover. Being heavy is bad, being burnt out cuz your metabolism is f@#ked up is worse.
just my humble opinion.
at around $80 for a good model, it's not a bad price. I would recommend this product.
Anyone else use one of these things?