Nothing ... I don´t even have any myth HP module, so I simply had to choose. If I put energy modules my HP drops to 1600 and I could not compete vs. anyone, not even vs. the same energys.
So I chose to place more HP and 0 energy module, this way I lose with the 5 or 6 hard energys in the game, but I can compete with all the others.
On this unbalanced game, only the strong energys can afford to beat everyone. So you have to choose...
Do you know the fable of the vase? The teacher placed a vase in front of his disciples and told them the vase had a problem, to look for them. Students spent a whole day searching for which defect the vase had, but no one could find it. When everyone gave up, the master took a mace and broke the vase. Then he told them "saw? The problem is gone". Moral: a lot of trouble, no problem.