The issue with the Schrades (and Ulsters) in the 70s time frame (give or take) was the Swinden Key construction. The purpose of the design was less expensive and more automated production but the result was a weak joint that was essentially unfixable. As much as I like Schrade, IMO it was a regrettable move towards disposable goods. Interestingly, the same thing might be said about one of Buck's recent knives introduced this year which uses a cartridge type construction. History repeating?
On the positive side, Schrade did a very good job heat treating their 1095. It's an utter joy to use and plenty of people seek them out despite the Swinden Key for that reason.
When I read that interview with Chuck Buck, I assumed he was talking about Schrade due to the Swinden Key issue.
When I think of Buck, I think of hunting knives: fixed blades and lockbacks. It's not clear to me that their slip joint pocket knives have ever been in the center of their wheelhouse. More broadly, I think the center of gravity of US made slip joint pocket knives was in the northeast, largely associated with British and German immagrants in the late 1800s and early 1900s.
When I think if the makers associated with the mid-west and west - Scagle, Marbles, Western, Buck - I think of larger hunting knives, often hollow ground.
I find the Buck made slip joints to be interesting. They combine traditional patterns with the hunters hollow grind and that's somewhat uncommon in traditional slip joints.
I have a big Camillus made 307 that has design elements I associate with more traditional slip joints; namely the long pull and flat ground blades. It's build quality is as good as any Buck-made Buck I've ever handled. But the Buck-made Bucks and Camillus-made Bucks are different animals.