Wytex,
I dry my cats head up, but I know it is common practice to dry them head down. I clean and fluff mine with alcohol and cornmeal after they are taken off the board though. Sometimes use a little borax, but I prefer the alcohol and cornmeal. I've washed them with different soaps over the years, from Dawn dish soap to Mane and Tail, to even human shampoo and conditioner, but the last few years I have been just rinsing all the blood and mud/dirt out with water, no soap. Many of the buyers say not to wash them, that the soap takes the natural oils out of the hair. I figured it was hype, and that the tanning process would remove anything that the soap would. And the cleaning I do on the hides afterwards to remove any grease would also (and unwashed hides always have more to remove, so more cleaning). But I had about forty cats flopped on the table and a buyer picked out the one cat I hadn't washed and said, "that one hasn't been washed, that's the way I like them." So since then I haven't been using soap on them. I had several top lot cats at NAFA over the years though, all washed with soap, so I'm still not convinced that it is detrimental. I take them off the board before cleaning the fur all up, and break the neck down, bending it back and forth and even running it over a rounded table edge if it is particularly stiff. The more limber the neck is the more the fur stands up on it and looks fuller.
Nice looking put up, and nice cat.