I'll occasionally cancel Expanded RR when I draw Bole and want to place it on the tank.

There's no benefit to having a half-strength damage reduction buff on the tank and everyone else. I want the full-strength buff on the tank to maximize its benefit.

Though I'd rather the Expanded effect be changed so that its primary target gets the full benefit. That way, if I place spire, ewer, bole, that the others get a 50% buff that's useless to them doesn't really matter. The primary target is still getting the full effect.