Heroes In War - A Compromise
There was another good thread about allowing a pause in the upgrade but I'd like to pose another alternative that also preserves the ability of SC to make money as I'm sure they make quite a bit from gemming hero upgrades.
Since we now have the pre-attack checklist that shows all of your troops they can implement a button that allows usage of the hero during that attack for 10 gems. At this point my heroes are down for 7 days at a time and after each upgrade is done I usually have the DE to start the next. This means I'm fighting nearly every war without both heroes. I understand not having access during regular attacks but SC made this game about war when they started them a year ago. If it's really about putting your best attacks/defenses forward to see which clan is better then something needs to be done to allow upgrading heroes to be used in attacks.
Like I said I know this is a money maker and it would remove the incentive to gem the time if they allowed heroes to be used freely. I hope with a gem option to use the hero during that attack we can find some middle ground that let's us use our best army but also lets SC continue to make money.