Nobody should be without e604's when micing drums live. They are the most natural, snappy tom mics I have come across that sound universally great in every venue, in every PA system.
The clips and small format are perfect for space saving, mic placement, and generally do not get in the way of the drums, unlike some other brands.
The only issue I have come accross is the grills can be easily knocked off by a strike from a drum stick, and are difficult to repair properly after. Otherwise indistructable, and in 10 years I have only seen one of them break from an idiot drummer standing on one!
Highly reccomended, don't bother with anything else for live!