Ranger: Shockchain Arrow Underwhelming?

I'm not sure what's going on. I'm starting with Lightning Rod (with a 100% chance to shock support gem) to add the shocks. When I use Shockchain Arrow, it doesn't appear to remove the shock like it says it should. And it seems weak...weaker against packs of monsters than Lightning Rod.

I know that for the 2nd part of the skill, the 'beam', to proc, there must be a 2nd shocked enemy nearby. I rarely see the 3rd part, the 'shockwave' go off at all.

I put on a low-level bow and rounded up some big groups of monsters. I actually saw it proc the shockwave some. It's just underwhelming right now. I fully understand that a lot of monsters have to be shocked for a lot to happen. I'm shooting 4-5 Lightning Rods (each 4 arrows) into packs, and seeing 1-2 of the 'Shockwaves'. I guess since I just got the skill, it's still low level, and the AOE aspect is weak, it might get better at higher levels. For now, Lightning arrow is way better. Even just holding Lightning Rod down is better...crazy.