We've been refining the formulae we use to calculate the weights for our clients to lift for 15 years, adjusting the sets, reps and weights again and again based on how our clients have performed after doing them so that they now work very well for most of our clients, but we still can't know in advance how any one athlete will respond to the training. Some people gain strength more quickly than others. Some have more strength compared to endurance or vice versa. So, the assigned weights are going to be pretty close, but they may need some adjustment. 

How do you know if the weights need adjusting? The first couple of weeks of the program (A and A2) should feel pretty easy. After that they should be just a bit challenging. In particular, you should be able to finish each set moving about as fast as you start, not pausing between repetitions and not slowing down. If you can't maintain your starting rhythm on an exercise, the weight is too heavy. On the other hand, once you get past the F1 and G sessions, you should have to really focus to maintain rhythm to the end of the long sets. If you can just pump out the reps with no particular effort, the weight should be made heavier. As the weight and sets progress, you should still recover from workout to workout with a limited amount of soreness and no excessive tiredness. Talk to your coach about any adjustments you might need to make to your weights.