ZZEF
From Speedsolving.com Wiki

ZZEF or ZZEdges First is a variant of the ZZ method proposed by Matt DiPalma in 2014. This variant aims to maximize the occurrence of skips and easy cases, increasing the chance of lucky and thus fast solves.
Contents
Steps
 EOLine: Like in ZZ, the solve starts by orienting all edges and creating a line.
 Lucky ZZ F2L: The first two layers are solved <RUL(D)>gen. While all F2L edges (two cross edges and four eslice edges) and one F2L corner need to be solved correctly, the other three corners only need to form a 3cycle which can be solved using a commutator, maximizing the chance of easier cases.
 Solving edges and one corner: Using SpeedHeise algorithms during last slot, all remaining edges are permuted and at least one corner solved, leaving one 3cycle on the top and one on the bottom. This may also be done intuitively like in Heise.
 Two Commutators: Two commutators are applied to solve the cube. One out of 27 times, only one commutator is required to solve the puzzle.
Pros
 When the remaining edges and one corner are solved using a Heise approach, no memorized algorithms are required.
 Due to the higher chance of lucky solves, faster singles are more common than in other methods.
Cons
 Unless algorithms are memorized for the 3cycles, one has to come up with them quickly and perform a rotation to solve the 3cycle on the bottom.
 During a speedsolve, it may be hard to quickly solve the corners in such a way that they form a 3cycle because of recognition and more thinking required.
See also
External links
 Speedsolving.com: Proposal
 YouTube: Walkthrough solve