In my case, whether they were coincidences or not, I put them in anyway, mostly E-Requests. I found that following the guidelines (30 days, 105 days, etc) for all the stages of the process and not getting anything is a good time to put in service request. The only thing I would say that I did different that most people is that I didn't flood all my communication avenues all at once.

My working theory was that I shouldn't do that because, well, everyone was doing that and with not much results, so why take the time to do it? Tier 2 reps are a very good resource for some things, but for others, not so much. And most of the time, InfoPass appointments, I feel like, are a waste of time and should only be used in extreme cases (not that you will get much out of them regardless).

Whether or not service requests online are truly effective, it remains to be seen, but if sometimes, you've got nothing to lose. If you're pass those benchmark dates, you should absolutely do them.