I am currently playing a chain warlock and mostly use the chain shape, but I sometimes switch to enervating shadow to deal with bosses.
And since warlock playstyle is mostly just holding the attack button to blast, this little bit of strategy made playing warlock more interesting.
So I was thinking:
Why doesn't focused blast have even higher damage to actually make it worth using in some circumstances.
For example if you run into a big, slow boss that does not require homing. Maybe you would use the focused blast for max damage.
Cone shape for some reason has much better spellpower scale than chain and is then much better choice for multiple targets. They should probably have the same spellpower scale (or very small difference) so one would not stick out.
So it would be nice to get some balance here to make all ranged shapes interesting under certain circumstances.
I believe it would make the class more interesting to play.