At the moment the recycle recipes are:
boss drop+boss drop= boss drop or reinforced boss drop
I would like to have this changed to use a stone to preserve our boss drops especially the high end ones that are you know worth 50+k rps on the EM.
Use ancient pres make a new stone idc. The rate is low enough that you would still make money. I used 25 silva feathers and got nothing! XD