I am another one of the many musicians here to have suffered from the 105 mic cutting out, losing power and making popping noises.
I have been using the mic for past 4 years and love it. I have other mics from this past 25 years and they are still working yet the most expensive mic i have only lasts 4 yrs and to replace the head if this is the problems is so expensive it would be better to buy a new mic.
But I am reluctant to give the company more sales because they haven't addressed the problem with these mics that people are having.