I forgot to say, when I first got started in goats, Decades Ago, the breeder I bought from used the snip the bottom, pull testicle, pull testicle, give a shot of penicillin method. But that was done young, really young, like at the same age as disbudding young. No knowledge of the dangers of UC, probably because adult wethers weren't a thing in that world. The more we know, the more we know we don't know... Hang in there. You have more accessible knowledge in your fingertips than I had in an entire public library. Yes, we had libraries then.... You are going to come through this sadness.