DonM I'm sure they are using slightly larger ID's, easier to install.
Correct Don. Time is labor and when you are slapping components together in China in a factory setting. Major brand rely n great cosmetics for a selling point but I have seen a lot of major brand issues with ferrules.
Personally, I use a epoxy application inside of ferrule when ferrule is slid on shaft. They never move or creep. It's my reputation on the line.
As to ferrule creep the main reason is air bubble trapped but you would see that as they set up and cure.