I use 7 heavy, but it depends on your playstyle and what you feel comfortable in. I'm fine with having a marginally lower resource pool and being extremely tanky. You might not like that. There's also other methods of gaining resources, like Deep Thoughts from the Psijic Order skill line.
I use 7 heavy, but it depends on your playstyle and what you feel comfortable in. I'm fine with having a marginally lower resource pool and being extremely tanky.