Hi i started hat acadamy two years ago and realy enjoy the lessons, so i purchased a 5 peice sloped crown block which curves inwards on one side but i think ive been a bit adventurous ive tried bloking but with no success  ive tried using an elastic band like in one of elaine clases , would it be best to make a patern and block in two part e,g top and sides , can anyone help please  thank you kate