I am learning more and more about snowboarding. I read about asking to get your board tip and tail detuned. What does that mean? Is it a good idea for new guys to get that done on a new board? Advantages and disadvantages.
Exactly what snowolf said. What you're going to want to learn is what each part of the board is called. The effective edge is the length of the edge between the tip and tail. It is the part that is normaly in contact with the snow while you are boarding. You want to keep this sharp, it's what helps the board hold it's edge in the snow. To see where the effective edge stops, lay the board on a table, or use a straight edge, you'll see where the tip and tail curve up from the base.
The metal edge is wrapped all the way around to protect the board, but having it sharp at the tip and tail serves no purpose since the T&T don't ever touch the snow normally. But if you do something where that edge does catch the snow, it's nice to have it rounded off so it doesn't grab you and throw you in a direction you're not going to like