He did use one set to failure. He did non taxing warm ups as needed. For a guy that can do 6-8 reps with 410lbs in the incline press he has to warm up. Doing non taxing warm ups with 135-225 and a few reps with 315lbs is a warm up. Most exercises he would do one warm up set. I can't believe some can't grasp the concept of one set to failure. For an ordinary guy who uses 225lbs for his inclines to 6-8 reps the warm up might be 135-8 and 185 for 4reps. Then it's the 225lbs for failure.
Again wrong. That's not how he built himself up. His training is never properly scrutinsed but instead is seen as some sort of mythical way of training when in fact it's just the pyramid scheme or a variation of it. It's based on the delorme watkins method which bodybuilders have used in various guises for many decades, since the 1940's in fact. It's nothing new or unique. Just one of the many different ways to train thats out there. Yet the hit cult think it's something magical and praise it as the only way to train. It's not and never has been.
Yates, like most bodybuilders, used different methods to build up. He used pyramid sets, straight sets, reverse sets and drop sets to build his body. Let's not forget the fact that Yates did weightlifting and powerlifting along with martial arts in his teens so he already had a good foundation to build on when he took up bodybuilding at 21. He used traditional methods to build up and not hit.
His old chest routine from the 80's was this
Bench press 135x10 200x8 265x8 285x7 310x5 pyramid sets
Incline press 250x5 240x5 230x5 reverse sets
Incline flys 70x8 70x7 70x6 straight sets
Source: his 1985 to 1990 journal files
Doing just one set to failure will not result in maximising gains. You cannot make continuous gains on just one set. It's a myth.