ah nukes, forgot about those. couldn't think of anything else that it would apply to. i never nuke when i solo (unless i need to proc grellow, then i just cast in fast cast gear cuz i care more about getting the spell off as quickly as possible and returning to melee) and in parties i'm either casting in fast cast for procing grellow or i don't nuke cuz things die too quickly and we have to wait for blue/red procs