If you go with AMG my advice is start with a fraction of the recommended dosage, from my limited experience about 10% of the suggested dosage is more than enough to get you down around zero. The last time I used it I wound up with a Brut Wee Heavy, O.G. 1.097, F.G. 1.002, not a bad beer though and way more residual body than you'd expect from the FG.