How much time is required to participate as a mentor in SUMO?
While the answer to this question will vary widely depending on the number of students a mentor works with, the difficulty of the proposals, and the skill level of the students, most mentors from past GSoC projects have let us know that they underestimated the amount of time they would need to invest in SUMO. Five hours per student per week (one hour a day) is a reasonable estimate.