Oh, good lord. It's just general guidelines. If you try to pin it all down to numbers you'll lose that 30% I always talk about.
All I was saying is I wouldn't add 20 pounds to just the high rep sets. I would add ten to the doubles and 10 to the high rep IN GENERAL.
Look at it this way. Say you've got some potato patches. So you go to dig up your potatoes and some patches only have 10 potatoes. The others have 15 or 20. Some have 12, etc.
Do you dwell on every little patch? Or do you just dig em up and go home with a bushel of potatoes?
It's the same way with gathering strength. That next PR, or whatever improvement you are looking for is a bushel. All the little individual numbers aren't as important. What counts is that they contribute to the filling that bushel. As long as they aren't rotten it all counts.
The flip side is that you get so many potatoes you can't finish them all before they sprout and go bad. Ok, so that's not a good analogy for "doing too much" but it's the best I could come up with that fits
I'm only good with numbers is a hang up. You've got to get past it to some extent.