Big shrug. I've been on around 100 big game hunts in North America and other places, paid for by various entities including manufacturers, booking agents, outfitters, and my own bank account. Have done even more hunting on my own in Montana since taking my first big game animal here 50 years ago, including some guiding. This experience has allowed me to personally observe quite a few rifles, bullets, optics and other hunting products in action, and that experience has helped me considerably in my profession.
So far in this thread the "negative" opinions about Partitions have been second-hand quotes about which other bullets PH's recommend, but there haven't been any detailed examples of how Partitions failed. I'd be very interested in reading about specific examples, because am still eager to learn.
