I've been thinking...now the elastic effect is even more important than before. I'll give you an example:
You are training IS which is 5 levels above ID and RB (so it trains slower due to elastic effect). Let's say in this case, one training of IS raises said skill for 0,4. So 0,36 goes into IS and 0,04 in another random skil.
Now let's say IS is 5 levels BELOW ID and RB. In that case, one training of IS raises this skill for 0,6. So 0,54 goes into IS and 0,06 in another random skill.
I know elastic effect was already important, but now it's even more since those 10% that go into another skill are worth more.