some zz solves, critique?

[genericcuber666]

I average 15 so these are slightly worse than normal, but i thought it would be good to show my bad solves over my good ones

 

[Pyjam]

What is this alg with S and S'?

 

[genericcuber666]

What is this alg with S and S'?

I solved the right block forgetting the Dr edge so inserted it with s U2 S'

 

[Rpotts]

You could also do R' U' R2 U R, assuming you're talking about the back right block. R U R2 U' R' for front right, just as an option. More friendly to execution and grip of the rest of your F2L turns.

 

[Pyjam]

I would have done it with my right thumb: R2 S R2' S'

I have an alg like this, U-Perm on the R side during F2L: R S R2' S' R (and mirror)
Sometimes very useful.

 

[genericcuber666]

I had solved both pairs