FMC riddle: second layer edge

[Stefan]

Scramble 1: F' U' F U R U R' U
Scramble 2: F' U' F U R U R' U'

Solve F2L in seven turns (htm). There are several interesting different ways, how many can you find? No cheating with computer solvers!

Hints (first move of each solution):

Spoiler:

Scramble 1:
F ...
F' ...
B ...
B ...
B' ...
B' ...

Scramble 2:
R' ...
F ...
L ...
B ...

Just so you know when you're done:
6 solutions for F' U' F U R U R' U
4 solutions for F' U' F U R U R' U'

Also:
3 solutions for F' U' F U R U R' U2
7 solutions for F' U' F U R U R' (including one or two you probably didn't know yet)

Solutions (check these out when you're done or give up, many are quite neat):

Spoiler:

Scramble F' U' F U R U R' U:
F U2 L F2 L' U2 F'
F' U2 L' U2 L U2 F
B U B2 D' R2 D B
B L2 D F2 D' L2 B'
B' R2 U' R2 U R2 B
B' D' R2 D B2 U' B'

Scramble F' U' F U R U R' U':
R' U2 B' R B U2 R
F U2 L F L' U2 F'
L F2 U F U' F2 L'
B L2 D F D' L2 B'

Scramble F' U' F U R U R' U2:
R U2 R' U2 F' U' F
R U2 B U' B' U2 R'
L F2 U F' U' F2 L'

Scramble F' U' F U R U R':
R U R' U' F' U' F
R U' R' U2 F' U2 F
R U' R' U' F' U F
R U' R' F R' F' R
F R' F' R F' U' F
F' U2 L' U' L U2 F
B L2 D F' D' L2 B'

[Sa967St]

got one:

Spoiler:

U' R U' R' U' F' U x

[jms_gears1]

Spoiler:

y R' u' R2 u R2 U' R'

[Stefan]

(Note: I added a second riddle and hints)

Ah yes Sarah, the cheating one . I thought about that but didn't include it in my spoiler because I wasn't sure it's the only one and I wanted either all or none.

[macky]

stuck at two

Spoiler:

yR'D'F2DR2U'R'
yR'F2U'F2UF2R

[AustinReed]

Spoiler:

F' U2 L' U2 L U2 F

[Sa967St]

(Note: I added a second riddle and hints)

Ah yes Sarah, the cheating one . I thought about that but didn't include it in my spoiler because I wasn't sure it's the only one and I wanted either all or none.

Well, it's an F2L somewhere.
I didn't even realize it was the inverse at first.

[Julian]

First one:

Spoiler:

B' R2 U' R2 U R2 B

Let me try and find more.

[jms_gears1]

Second one:

Spoiler:

R'U2B'RBU2R
LF2UFU'F2L'

[mr. giggums]

Spoiler:

Scramble 1:
F U2 L F2 L' U2 F'
F' U2 L' U2 L U2 F
B L2 D F2 D' L2 B'
B U B2 D' R2 D B
B' D' R2 D B2 U' B'
B' R2 U' R2 U R2 B

Scramble 2:
R' U2 B' R B U2 R
F U2 L F L' U2 F'
L F2 U F U' F2 L'
B L2 D F D' L2 B'