Lee's Neutral
FF+4
This is a very important approach tool in this match-up. The crushing properties of this move allow Lee to go under both Heihachi's electric AND his D/F+1; both of which are good keep out tools Heihachi will use. The crushing of the electric isn't surprising since it is high, but the hit box on Heihachi's D/F+1 is so small that Lee can consistently go under it with FF+4.