I don't really care for minions, and as soul reaping seems pretty weak (being near dying enemies is a good way to die, yourself, as a Necro, I've noticed), I'm seriously considering dumping my lvl 18 N/E and starting over with an E/N. It just seems that I would be able to enjoy the same skills but with more mana to work with. Additionally, if I could carefully select my corpses to make energy/health wells I'd live a lot longer, and with more mana I feel like I'd have more freedom to be selective. I just want to make sure I'm not missing something.
Any feedback appreciated in advance.

BTW, this would be my 5th time going through the grind (N/E, Wo/M, Mo/W, Me/R), so I can do it pretty quickly and isn't a problem. Just don't want to totally waste my time.