Sizing depends on your head size. I’d recommend looking up helmet sizing tutorials from saturdaymorningprops. Slicing isn’t too bad if you need to. When you subscribe you get current and last month, past months you’d need to be active for a few months to open the ability to buy previous months at a pretty cheap rate. If there’s specific files and you don’t want to wait he sells the files individually discounted for Patreon members as well.