Hoi, I grabbed all the new hbook files from Alessio and Henning, and produced new chains. This is temporary and Alessio will probably (hopefully) update this next week (not all of the 2000 MC is done). The updated chains are as usual in http://www.slac.stanford.edu/BFROOT/www/Physics/Analysis/AWG/InclusiveSL/islrecoil/chains/genbb/?M=D and have names like csx-genb??-new-*. They also come in merged versions. As you like it. Cheers, --U.