I see that in SL5x5, the weight increments are bigger for Squats and Deadlifts. I am curious about that. It seems obvious too that you are not expected to lift the same weight in an isolating, small muscle exercise like Reverse DB Flies, than the amount you lift in a big compound Bench Press.
What are good proportions between weights in different exercises, for a well balanced athlete?
Is there any canonical, numerical proportion between loads for different exercises?
(I guess we could have a rough idea by looking at the training statistics of some known athletes. Any idea about where to get such data?)