The chap in your link is using differing thickness shell holders , if you use the Lee Universal shell holders then yes use No 2
This link may be more helpful
https://youtu.be/htvk1UYOXm8
The chap in your link is using differing thickness shell holders , if you use the Lee Universal shell holders then yes use No 2
This link may be more helpful
https://youtu.be/htvk1UYOXm8