Kerry, During the early 1970's, I used to use the Starline hybrid on occasion in my pollination business. It became quite standard procedure for me to allow only the very dark queens that might result from swarming cells or supercedures to head colonies. In quite a number of cases when I chose the resulting "Italian looking" queen, light yellow in color, there would be vicious progeny afterwards and a very mean hive. As to it disappearing, yes it sometimes did so but rarely did I allow it to continue to exist too long as I didn't want the "viciousness" to be bred into my other hives. When this started to happen with predictability, I changed over to a strain of bees and have continued to do so instead of using hybrids. My business has become again an enjoyable hobby and the predictability of a strain of a definite race adds to the enjoyment. The afore-mentioned experience happened quite some time ago and no doubt the Starline hybrid has changed considerably since. Some hobbyists enjoy them very much. But in my opinion you are correct in what you imply in your question, as I witnessed it often enough.