I would agree that you should consider every aspect of a confrontation carefully. Be prepared for ANY reaction. Be expecting the unexpected. And plan in the best possible way, to keep you with the 'upper hand'.
I confronted my abuser, first by letter, then in person. The letter was somewhat freeing, although it rather scared me, with the amount of emotion I actually had in it. I also sent a copy of the letter to another person, as evidence of what it said, and chose my words carefully, so he can not come back and say I threaten him. (although I wanted). The physical confrontation, it came at a time I was not prepared for it, I had been planning it for a time when I knew I would be having to see him, but it turns out I seen him before then. It did not go well, and it did become physical at one point, but I do feel I left it positively, with him knowing he can not mess with me no more. Also, myself and other athlete made statements on him, so that he can not be alone with anyone under age 18 to train. It is not everything, but it is something.
If you do choose to confront, I hope you consider everything beforehand, and I hope it goes well for you. Good luck.
Avatar photo in memory of my younger brother Makar.
"Human salvation lies in the hands of the creatively maladjusted."~~~Martin Luther King Jr., 1963