Devs, Please! remove the 2x SP penalty from CE

[Alabore]

Of course, players have often suggested that the penalty be replaced with simply suppressing the CE benefit for 5 seconds whenever you cast.

^
This.
Sounds smart.

...

EDIT:

Possible exploit: in pnp CE gave the AC bonus while fighting in melee only.
In computer games it's providing AC bonus outside melee.