I'm very confused on the starbase abilities like resupply, mass disorientation, meteor storm, debris vortex, and frontal deflector.  All of these have a second upgrade level but it seems that most of them do not actually get an upgrade but just more antimatter.  Which abilities actually get a performance increase when researched to the 2nd level?  Does resupply 2 actually work better or can i just cast it more with the increased antimatter? 

I really wish the description explained what i'm getting out of a 2nd tier research for these starbase abilities.