I think you should do intuitive F2L because Alg. F2L us not only restricted to those 42 alg.
There will be about a 90% that at least 1 of the pair(both) will be stuck in the bottom layers. As such, if you had realised the alg. You would automatically do a alg.
But if you did it intuitively, you...
If you really want to get sub-6, do what some people do.
Instead of thinking 8 moves per pair, you could do 14 moves per 2 pairs.
So this would -1 for each pair, making your rod to be around 4TPS.
And some alg. Doesn't even require 8 moves. If you can do it efficiently, 4 seconds is not even a...
I'm feel that there are some stages when doing F2L.
1st. It takes you quite long to get the edges and corners to match; inserting the pair is separate from matching them in almost all cases.
2nd. You can match them fairly well, and is starting to get the concept of looking ahead; but still does...
I am a average 22.
avg of 12: 22.72
Time List:
1. 21.02 U F2 L D2 B U' R2 F' R' D2 L2 B2 R2 F2 U2 B2 D F2 B2 D B'
2. 24.22 L' U' D R2 B' U' L' F U R2 L2 U B2 U' F2 D2 L2 B2 R2 B
3. 20.75 B R' B2 R' D2 F2 U2 L B2 L R2 F2 U' F R2 D F L F U' B'
4. 25.48 R F2 U L2 F2 U' R2 B2 U2 L2 U' L'...
Most optimal way to find and handle Fridrich F2L pairs?
I would look at the top layer. Unless you get a case where the entire top layer has no F2L edges, you would have already noticed it when you were doing the cross. As for corners, also the same thing.
The tricky part about my solution is...