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As the title states my goal is Sub-8 with ZZ, which is my main method (inspiration from @PetrusQuber ) At time of writing I am sub-20, know most COLL cases (need to learn L cases and a few Sune cases) Goal by the end of week 1:
All COLL cases (except for 4 Sune and 4 anti sunes)
consistent sub-17
EOCross In under 13 moves
Higher F2L TPS

Spoiler: Week goals and updates

Spoiler: Week 1

Goal by the end of week 1: All COLL cases (except for 4 Sune and 4 anti sunes) consistent sub-17 EOCross In under 13 moves Higher F2L TPS Update 1:Nearly done with COLL need about 3 more L cases and ill be done, also have been working on EOCross efficiency

Spoiler: Week 2

Goal by end of week 2: Start learning T ZBLL, Try for sub-17, and work on lookahead Quick update:
Just started slowing down TPS, this has made my solves smoother and better lookahead. This slower TPS has also made my solves better, I will probably keep this slower TPS until more speed is required Update 2:
Just reached sub-17! also been getting some sub-15 times.

Spoiler: Week 3

Week 3 goal:
Working on ZBLL, lookahead and fingertricks (regripless zzf2l) and ive also been reducing times to sub-16 but not there yet

If you have any tips, tricks or any of your quest for sub-8 ZZ feel free to leave them here

very inefficient, even for me, gotta get my EOCross movecount down, finish COLL and go onto ZBLL, and look for better f2l solutions
any other critiques?

U2 F D' B' D B D2 L' D R U2 L2 D // EOCross - U2 F' R' B R B' L D' L U2 L D2 is the same EO(a little more fingertrickable), but a much better Cross. It also preserves the first pair

L' U2 L U L' U' L // 1st Pair - I'm going off of your EOCross, good solution for that F2L pair, but I probably would've gone with the RYB: R U' R' U R U' R'

U' R U' R' U R U' R' // 2nd Pair - I would've gone with that same pair and done the same solution

U L U L' U L U' L' // 3rd Pair - I would've gone with that pair also. I solve it differently, but yours is also good

R' U R U' R' U' R // 4th Pair - Good solution

R U R' U R U2 R' // OCLL - Can't complain there lol

R2 u R' U R' U' R u' R2 y' R' U R // PLL - imo this G-Perm sucks. It has multiple wide moves and a rotation. I use this alg: R2 U R' U R' U' R U' R2 U' D R' U R D' If done right, it has no regrips

U' // AUF - I prefer U U U

Also, something cool: x2 U2 F' R' B R B' L D' L U2 L U2 L U L' D2 R' U2 R Gives you an EOXCross+1 in not many more moves than your EOCross lol

very inefficient, even for me, gotta get my EOCross movecount down, finish COLL and go onto ZBLL, and look for better f2l solutions
any other critiques?

EOCross: Here's my 9 move solution: z2 B' R2 F' D2 R' L D R2 D2
First pair: I would've done R U' R' U R U' R', but what you did was just as good.
Second pair: L U2 L' U2 L U' L' is probably better because you reduce F2L to RU but what you did was fine
Third pair: Perfect
Last slot: Also perfect
Last layer: Sune was obviously the thing to do, I find the RUD G-perm better.

U2 F D' B' D B D2 L' D R U2 L2 D // EOCross - U2 F' R' B R B' L D' L U2 L D2 is the same EO(a little more fingertrickable), but a much better Cross. It also preserves the first pair

L' U2 L U L' U' L // 1st Pair - I'm going off of your EOCross, good solution for that F2L pair, but I probably would've gone with the RYB: R U' R' U R U' R'

U' R U' R' U R U' R' // 2nd Pair - I would've gone with that same pair and done the same solution

U L U L' U L U' L' // 3rd Pair - I would've gone with that pair also. I solve it differently, but yours is also good

R' U R U' R' U' R // 4th Pair - Good solution

R U R' U R U2 R' // OCLL - Can't complain there lol

R2 u R' U R' U' R u' R2 y' R' U R // PLL - imo this G-Perm sucks. It has multiple wide moves and a rotation. I use this alg: R2 U R' U R' U' R U' R2 U' D R' U R D' If done right, it has no regrips

U' // AUF - I prefer U U U

Also, something cool: x2 U2 F' R' B R B' L D' L U2 L U2 L U L' D2 R' U2 R Gives you an EOXCross+1 in not many more moves than your EOCross lol

EOCross: Here's my 9 move solution: z2 B' R2 F' D2 R' L D R2 D2
First pair: I would've done R U' R' U R U' R', but what you did was just as good.
Second pair: L U2 L' U2 L U' L' is probably better because you reduce F2L to RU but what you did was fine
Third pair: Perfect
Last slot: Also perfect
Last layer: Sune was obviously the thing to do, I find the RUD G-perm better.

I did:
x' z2 U' B2 (with thumb on U) D // 3 move EO
D L' D R' L2 D' // Cross
U R U2 R' L U' L' // 1st Pair
U2 L' U2 L U L' U' L // 2nd Pair
R U' R' U2 R U' R' // 3rd Pair
U2 R' U R U' R' U R // 4th Pair
U' Rw U R' U' Rw' F R F' // OLL
U2 F' U' F R2 Uw R' U R U' R Uw' R2 // PLL
got a 10.99

Critique of your solve:
x2
U2 F D' B' D B D2 L' D R U2 L2 D // EO-Cross
EO-Cross is heavily improvable
please don't do U2 L2 D to finish cross but keep it 2-gen instead

L' U2 L U L' U' L // 1st Pair
better: L U L' // idk why nobody would've done this but ok

U' R U' R' U R U' R' // 2nd Pair
honestly a terrible pair you chose, all remaining f2l pieces are in U and F so you should've seen green/orange and cancel into it

U L U L' U L U' L' // 3rd Pair
good

R' U R U' R' U' R // 4th Pair
good

R U R' U R U2 R' // OLL
I like to preserve blocks but sune is always good
or niklas to solve corners

R2 u R' U R' U' R u' R2 y' R' U R // PLL
bad alg, learn the RUD

2 Handed Name,Main alg,Alt Aa,R' B' R2 D R' U' R D' R' U R' B R,x R' U R' D2 R U' R' D2 R2 x',(U) x' R2 D2 R' U' R D2 R' U R' x Ab,R' B' R U' R D R' U R D' R2' B R,x R2 D2 R U R' D2 R U' R x',(U) x' R U' R D2 R' U R D2 R2 x E,x' R U' R' D R U R' D' R U R' D R U' R' D' x F,R' U' F' R U R' U' R' F...