Out of interest, here are the tm percentages (I assume those speeds are without the leadership):
When 579 JML 1 goes, JKR1 is at 364/579 = 62.9%, JML2 at 535/579 = 92.4%, and JKR2 = 381/579=65.8%.
Team 1 gets 15%...JML 1 is at 15% and JKR1 is at 77.9%.
Now JML 2 goes, completing the other 7.6% tm, so JML1 is at 579/535*0.076+0.15 = 23.2%, JKR1 = 364/535*0.076+0.779 = 83%, JKR2 is 381/535*0.076+0.658 = 71.2%. Everyone gains tm, JML2 goes to 15%, JKR2 goes to 86.2%. So you can see that JKR2 still has more tm owing to the faster speed.
Edit: I saw that you said JKR is lead. So the tm from leadership is wrong. But the point still stands.
