I have done 531 in the past (did it when the 3-day a week ebook went out in 2008) but with estimated maxes, it’s been a while since I used it. I have done sheiko cms the last 8 weeks and did my first meet last week. Would it be wiser to use 85% instead of 90% of my meet numbers (all PR’s) ? Thanks.
Nope. That would screw up the program; I recommend doing things correctly. Take the time and effort to do it right.
Work up just as the book shows you and do the 85% test.