I would like to breed as a hobby, not tomatoes though, fruit trees, and brambles. I do a small amount of new crosses every year. I lost some seed when my mother-in-law was in my garden and ate one of my hand pollinated raspberries! Argh! Well at least I had 3 others left of the cross. I'm trying to make a good orange raspberry. The only color I don't have.
I had high bacterial spot this year myself, good luck with the hybrids!