My head is swimming from reading so many reviews ranting or raving about products that I don't much understand. I am lost when it comes to pressure cookers, but have been told they are the best method to cook tough old cull roosters or hens. So my question is: what is the best pressure cooker to serve my purpose.. electric or stovetop? What are y'all using? There are Instant Pots, Crock Pot pressure cookers, and all sorts with tons of bells and whistles. Help me please!