I am pretty sure CT addressed this in an article back when the original layer system and the 10 day layer system came out but I am unable to find it. What is the optimal way to work up to and test your true 1RM in regards to how many sets, reps, and how much weight to add to the bar with each set? Using different versions of the layer system as they came out I successfully increased most 1RM lifts substantially but on my last attempt with Flat Bench Press I failed on 375lbs when my previous max just about 8 weeks earlier was 365. I started with 135x3 2x just to get warmed up and then added 40-50 lbs a set doing only 1-2 reps until I got to 375. Didn't make it. I did the same for Back Squat on a following day and did get the lift without a problem.
Any advice appreciated, thanks.