Hi,
I bought 5/3/1 Forever and I struggle to decrypt some of the programs.
Example:
SSL (page 129)
Monday:
Squat - 5/3/1, 5’s PRO, SSL 5x5
What are the numbers ?
My first guess, if we are in the first week and I read literally:
5/5/5+ (from 5/3/1)
then
65%x5, 75%x5, 85%x5 (from 5’s PRO)
then
5x5 @80% (or 75, not sure)
Currently I’m following classic 5/3/1 with BBB and I’m trying to evolve my training with leader/anchor programs, and understanding Forever helps me to chose wisely 
This means your main work is always done with sets of 5 (no + sets).
The supplemental work is done at the weight of your second working set.
So, let’s say you are on the “3’s” week, and doing BP:
Warm ups: 40, 50, 60% (5 reps each)
Working sets for 5’s PRO: 70, 80, 90% (5 reps each, no + sets)
SSL: 80, 80, 80, 80, 80% (5 reps each)
Read the whole book, both 5’s Pro and SSL are explained in depth
Yes I just finished the book, the only confusing part was the “5/3/1” before 5’S PRO and SSL. Thanks @antiquity
That just means to run 5s Pro at the normal 531 percentages.