I worked for a taxidermist in Alaska for 3 years that had over 150 pieces of taxidermy in his house - full bodies, rugs, shoulder mounts, etc...every room...wall to wall...it was a sight...twice a year he would remove nearly every piece of it one at a time and blow them off with an air compressor that was set very lightly (it took almost a full week to do this). His opinion was when you wipe them down without blowing the dust off you push some of the dust down into the hair which builds up over time. Blow them off first, wipe them down, brush them if needed, clean the eyes, etc. Also, a light coating of lineseed oil on the antlers will keep them looking good as new forever. Just another option for ya....