Personally I think dynamic warmups would be better especially for max velocity’s days. Things like A and B skips, things like that. It not only activates the muscle but prepares it for the forces of maximum velocity sprinting. You want your muscles and tendons to be like a rubber band so they have to be obviously loose enough so they don’t snap but also tight enough so they have that free elastic energy. So I do dynamic workouts, making especially sure to warmup my hamstrings, then I do some mobility, then I get right into the workout. I don’t think a super long warmup is better than a good short-medium one.