To each their own, and if you like these stones, good.
I just like whiskey as it comes. Done the frige thing a few times. Mostly I like to have a glass of ice water and a seperate glass of whiskey. I let it mix in the belly.
I disagree, a little, with cowdery on the freezer. IMHO, changes the taste a little after a while, and will form a few ice crystals. Will not "freeze." I don't think it change proof, just taste, maybe it is something like freezer burn. Some who like higher proof like it. I could be wrong, but I think the effect on proof is very minor (less than 1%, even less than .5%).