Floyd tail

This is definitely a good alternative to all things dive-bombing from the industry standard- Floyd Rose's Rail Tail bridge. No mods necessary as explained here:

Floyd Rose- unlocked

The irony of it all- a non-locking Floyd Rose unit. The Rail Tail model by the manufacturer is based on the idea of the bridge chassis sitting on top of a rail unit that is fixed directly onto the body. This way, you get the smooth rocking movement of a pivot-type mechanism. The catch here is that the RT is a dive-only unit unlike the dual action freedom of its locking siblings.