Electrolysis on the scalp

There have been a few old posts on this subject, but nothing recent. I was wondering if there is anyone here who has gone through with electrolysis on the scalp. I currently shave my head and I am quite satisfied with the bald look. My wife loves it! I was looking into the possibility of permanent hair removal in the future, when I could better afford it and there would be less hair to remove. Any advice would be welcome.