I finally got around to transferring the problem 2010 syrah from one barrel to another. The acetone aroma was definitely present, though not so bad in the taste. If I let a sample sit out in a cup for a while it seemed to dissipate, so hopefully a good splash rack and some sulfite will fix it as it has in the past. I also remind myself the previous vintage of this syrah had ups and downs and pulled through, so I just need to add the most important ingredient to this wine — time!