1.Does your boat have a traveler for the main sheet?

Yes

No

2.If no, can you still adjust the boom and sail to the angle of the wind? How?

We don't adjust the boom's angle to the wind

We have a double mainsheet or German-style sheeting system to control boom angle

We use a preventer to adjust the boom angle

We only adjust leech tension with the boom vang

3.If you do have a traveler, how often do you use it to adjust the boom's angle?

All the time

Often as wind conditions change

Usually set it amidships most of the time

Only in very windy or very light  conditions

We don't ever adjust the traveler to affect mainsail shape