Guys, it's not so much weight-dependent as tolerance dependent. If you monitor yourself closely on T3, even just paying attention to sweating and heart rate, you'll figure out where your dosage is. It's usually between 40mg and 150mg/day for a person. Yes, on average, a larger person can handle more, but I'm a decent size guy (5'11", 210lbs) and can get good results off 40mg/day, and get really jacked on 75-90mg/day. I know some guys that weigh less than I that take 100mg/day before they really get going. If you're a smaller guy, start around 20mg/day and see how it goes, maybe work up to the 40mg-50mg/day range. That's going to be plenty for pretty much anyone to get results. Make sure to throw in some clen, it's an excellent catalyst and synergest for T3.
-B