I have told the patrol that in order to get to an island and rescue some mice an Ob 5 boatcrafter test is necessary. Multiuse and for a whole patrol (2 mice + those being rescued).
The players may decide that they should make a boat that’s just for the two them at Ob 3. Should they then need to spend a check for the return journey. Assuming they reach the lost mice and complete the mission? Or is the Ob 3 test simply not suitable?