Yeah I didnt know if it was not registering at all or if it just was not displaying on the skill description.
But I have a commando and I specced in the same tree and the skill actually displays the changes to energy cell consumption (commandos ability usage requirement). So I was taking the safe route and just reporting it because either way the ability tooltip should be showing the difference.
That is good to know that the effects of the skill points are in use just not being displayed though. I just started mercenary to the point of getting tracer missle and not having those heat management points would have made that class tree very heat inefficient.