At this point multiple evaluations makes the most sense since, it gives different types of learners a meaningful evaluation on their learning curve and since the students are distant learners they need the extra input. 

I feel that the students look for instant feedback. The rubric helps to make a check list for the students to ensure they are completing the assignment correctly. 

I have not used this option before, but I like the idea of using the discussion boards and the FAQ option to relieve answering multiple students while having the students reply amongst themselves. It promotes the connection between the students that they would get during face to face vs no connection between each while working online.  

Understanding that the attention span for each student varies and will affect their comprehension of each module. Creating modules for the student by "chunking" assignments and keeping consistency throughout each course will create a balance flow with less stress and chaos for the online learner.