One word: overanalyzing. For one thing, Prilepin's chart was created with the Olympic lifts in mind, and they are more of a guideline than a set in stone parameter. When you work up to a max effort, you are just trying to get in at least 3 lifts above 90%(your own personal recovery capabilities will determine how many you should go for, as well as experience), you don't follow Prilepin's chart all the way up, that would be if you were only working in the 70% zone for that exercise for example(and for the olympic lifts for that matter, you wouldn't take a benchpress and work it in the 70%-75% zone for 3-6 reps, too much weight for speed, and too litle volume for hypertrophy. It doesn't really matter how you warm up as long as you accumulate sufficient volume and take safety into consideration.
Quit thinking so much and lift. When I did Westside 2 years ago, my biggest mistake was overanalyzing everything and I took a big step backwards. If you are a total beginner, try to get as manyu lifts above 85% in as you can without overtraining, and make sure to focus on hypertrophy as well. By the sound of it, dynamic effort method might not be vital for you at this point, but I could be wrong.