I've been doing electrolysis for almost a year now, and have logged 146 hours in 13 full face and neck clearing sessions. The first four clearings were done with two technicians working simultaneously, one on the right, the other on the left side of my face. Those initial clearings were traumatic with much swelling, redness and soreness that lasted for weeks. Though they used the same epilator brand (27 mHz Apilus Platinum) and the same modality (flash thermolysis double pulse), my right cheek and neck saw much better results (both higher kill rate and less skin damage) than my left side. My experience tells me that the skill of the operator is very important to get good results. On sessions 5 through 13, I continued with just the woman I judged to be the better electrologist. I asked her to use 6 sec blend as much as possible (for its higher kill rate and to minimize skin damage), followed by flash thermolysis as needed to clear the rest of my face and neck in a 5 to 6 hour session. By session 10 she was using blend to clear my entire face and neck with no swelling, redness or soreness. At this time, my right cheek has no hair remaining. Six-second blend can treat at most 500 hairs an hour, so my face has been cleared of about 90% of the original amount which she called my 'lumberjack beard'. I estimate I'll be virtually free of facial at 200 hours at a total expenditure of around $20K in 15 months.
I consider this to be about as aggressive as one can be to get rid of facial hair, and I did suffer some skin damage in the early clearings. My advice is to go easy in the beginning especially where the beard is very dense. I may not have suffered 'pitting' per se, but there is some roughness that I don't like. I've had one fractional CO2 laser skin resurfacing treatment to restore the smoothness to my skin, and will need another treatment as well.