I actually added a couple of decals. I believe they are put on and then clear coated. Removing them would probably screw up the finish.
As for the eccentric, when we were specing ours, Michael at Calfee, asked if I ever intended to use a belt drive and I told him that I may in the future, he said that the Calfee eccentric was more difficult to install square and could cause problems with a belt drive system. You may want to give Calfee a call and get more details. The new CDX drive that is supposed to be available this winter may be the answer.