You're welcome! I can't stress enough how easy it is to start a new character and level him up to get a feel for a certain strategy or equipment. I am more interested in 'Shocking' enemies to get Coup de Grace to proc.
I haven't read anything about Shock Grenades yet, but I am curious to see how they work when I am high enough level to get them. However, if I put points into Dynamo Field (uses close proximity to enemies to gain Charge) then I am not helping my strategy and I'd be using him wrong. If I am equipping a ranged weapon, like a cannon, I will not want to be in melee-range of my enemies. Now, 'using him right' is a little more definitive. The beauty of this game is you get to try a variety of skill/equipment options that cater to your style of play. The Cannon Engineer I'm leveling is currently only at level ~21, so I can't say that they all do high damage as a blanket statement.