What I always do is after how ever many seconds needed for a copper ring, as I"m removing the iron, I just drag it across the horn bud and give it a little flick. That pops the top off, then you can hold your iron over that part (it may bleed just a touch) and burn off the actual horn bud. They don't holler when you touch that part with the iron. That's how I was taught to do it, right or wrong, I don't know. It gives them a nice flat head.
I guess I'll add this disclaimer to my posts for awhile... Apparently I've been labeled as a "troublemaker" by some who follow this section of the forum. I'm not really sure why. So, if you don't want my opinion left on your post, please contact me directly and I will delete it at as soon as I possibly can. I am, however, not going to let them stop me from trying to help people who need assistance with their goats. I will reiterate though, my posts are my opinions. If you want them removed, don't' call me a bully (seriously?) and a troublemaker. Talk to me like an adult, and we'll resolve whatever difference that has arisen like adults.