Saying that Fappiano lines are to be avoided on the basis of soundness issues is not only untrue, it’s doing oneself a disservice by eliminating a consistently sport-friendly line. Especially since we’re generally talking about diluted blood through his grandsons/granddaughters (and further back) these days.
My belief is the Fappiano/Unbridled line gets an undeserved rap for unsoundness thanks to the already preconceived misconceptions about Mr. P combined with some freakishly fast, high profile individuals who succumbed to injuries early in their careers.
I also think the late 80s through the early 00s were the pinnacle of the “better living through chemistry” era of horse racing. A lot of pharmaceutical technology came on the market fast and furiously before regulation and awareness could catch up. Steroid dependence led to uglier of let downs when you took a horse off the track, which was then wrongfully blamed on bloodlines. Medication regulation has changed considerably in the past 10 years.
