[hssandwich]

All with limit:

#1: 30

Spoiler (Click to View)

(B2) R' U2 //square
(L R' B L') //222
(D2 F' D') //223
(R' F R2) //F2L-1
U' R U R' //F2L
F R' F2 R L F2 R' F2 R F2 L' F R' F R //ZBLL (30)
I didn't like this scramble :p Shame it wasn't a nicer ZBLL

#2: 30

Spoiler (Click to View)

F2 L' F2 D2 (B2 R') //pseudo 2x2x3
L U' L // F2L-1 -1 edge
U' B' U B * D // F2L-1
U F U' F' //F2L
U R' F' U' F U R //3 corners in 24
*L U R U' L' U R' U' (30)
I didn't like this scramble either :p

#3: 22

Spoiler (Click to View)

It needs a little explanation
(U' L F') //2 squares
R2 F R' L //223
F (F) //F2L-1
(L B L') //F2L in 9 moves!!!

However, I only found 25 with this, and I was curious as to what would happen if I tried the moves on inverse on the inverse scramble:

(U' L2 B L')
(F' B' R L') //pseudo F2L!
R2 F //Undo pseudo
Then I had an easy 2GLL which cancelled 2, leaving me with 23

However, I was not done, I had seen an easy reduction to 2c2e earlier, but I didn't see the number of moves, so I tried to find it:

(U' L2 B L') //found with original F2L
(F' B' R L' F') //pseudo F2L
(D' R' D R') // 13 to 2c2e!
Skeleton: R D' R D @ F L R' B F L B' L2 U
@ D2 L' D' L D' B2 U R' U' B2 (1 cancelled)
=22 moves

27.33 Mean of 3