Type 1
https://www.youtube.com/watch?v=A6GX91jfVqA
Type 2
https://www.youtube.com/watch?v=tJjrHwjLk2M
Type 3
https://www.youtube.com/watch?v=0Hjbex_E-5g
Type 4
https://www.youtube.com/watch?v=Ba5IWs66488
Sometimes he is a little weird...but nonetheless, I think these videos overall have good information.
