Block-freeze is how long a character is frozen when you strike a shield with an attack. Blockstun is how long the opponent is stuck in their shield after the Block-freeze ends. Advantage is how much faster (or slower) you recover from your attack compared to your opponent recovering from Blockstun. So if you're -16, your opponent recovered 16 frames before you can act again.
The two different advantage values are for dropping a shield (which takes 8 frames), or for if your opponent were to use an OOS option (which ignores shield drop frames).
Also, got all the numbers for the shieldlag changes for Ryu. Updated my
frame data sheet as well.
Jab 1: Self Shieldlag reduced by 2 frames, 10 -> 8.
Jab 2: Self shieldlag reduced by 3 frames, 11 -> 8.
Jab 3: Self shieldlag reduced by 3 frames, 12 -> 9.
Jab (Strong): Self shieldlag reduced by 3 frames, 15 -> 12.
F-tilt (Light): Self shieldlag reduced by 3 frames, 13 -> 10.
F-tilt (Strong): Self shieldlag on the first hit reduced by 3 frames, 11 -> 8. Self shieldlag on the second hit reduced by 3 frames, 13 -> 10.
D-tilt (Light): Self shieldlag reduced by 3 frames, 12 -> 9.
D-tilt (Strong): Self shieldlag reduced by 2 frames, 13 -> 11.
U-tilt (Light): Self shieldlag reduced by 2 frames, 10 -> 8.
U-tilt (Strong): Self shieldlag reduced by 4 frames, 17 -> 13.
Dash Attack: Self shieldlag reduced by 4 frames, 17 -> 13.
F-smash: Self shieldlag reduced by 4 frames, 20 -> 16.
D-smash: Self shieldlag reduced by 4 frames, 20 -> 16.
U-smash: Self shieldlag reduced by 4 frames, 20 -> 16.
N-air: Self shieldlag on the strong hit reduced by 3 frames, 14 -> 11. Self shieldlag on the weak hit reduced by 2 frames, 11 -> 9.
F-air: Self shieldlag on the front hit reduced by 4 frames, 19 -> 15. Self shieldlag on the back hit reduced by 3 frames, 14 -> 11.
D-air: Self shieldlag reduced by 4 frames, 19 -> 15.
U-air: Self shieldlag reduced by 3 frames for both hits, 12 -> 9 for the first and 13 -> 10 for the second.
Focus Attack (level 1): Self shieldlag reduced by 4 frames, 19 -> 15.
Focus Attack (level 2): Self shieldlag reduced by 5 frames, 22 -> 17.
Tatsumaki Senpuukyaku: Self shieldlag reduced by 3 frames for the initial hit, reduced by 4 frames for the remaining hits (all versions)
Shoryuken (Light): Self shieldlag reduced by 4 frames, 20 -> 16.
Shoryuken (Medium): Self shieldlag reduced by 4 frames, 22 -> 18.
Shoryuken (Heavy): Self shieldlag reduced by 4 frames, 23 -> 19.