Understanding the differences between yarn types is like understanding the premise of the game “Rock, Paper, Scissors.” Rock wins over Scissors but loses to Paper. On the flip side, Scissors wins over Paper but loses to Rock. In the same way, each yarn type has its own advantage and disadvantage. Where a certain blade type may be more dominant in one field, it is secondary in the other.

For example, to achieve the strongest yarn and the firmest turf that will outlast the others, some softness must be yielded. In the same way, to achieve a yarn that is soft to the touch and a turf that is luxuriously comfortable underfoot, some firmness must be let go. When deciding on a the best blade shape for your needs, this is a general and bluntly obvious rule to remember: a rounder edge will be softer, and a more angular edge will be stronger.