Funny, but I find F2B in Roux easier than inserting the F2L-pairs (excluding the cross) in CFOP. At least in color/case recognition.
yeah even though im a cfop i find F2B very natural and all the pieces just present themselves. F2L has so many rules.
on a slightly related note, when i replace my stickers i peel off just enough to give myself a challenge like solving 1 side or 2 sides.
and as a reference, i can solve the cube on average in about 12.5 seconds.
2 opposite sides takes me about 16 - 20 seconds.
1 side takes me around 6 - 8 seconds, which is how long my F2L takes.
3 sides takes too long for me to even bother.
just goes to show how accustomed we are to our methods.
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and just slightly related to that,
i can recognize and complete the first block while inspecting while being full colour neutral (normally for Roux i restrict my U colour to white/yellow) and then i slow down a bit for the second block, CMLL is completely normal, then LSE becomes a huge pain.
i am fully colour neutral for CFOP, and some people claim that by being colour neutral they can magically start to visualize piece relationships instead of colour patterns (and they couldn't do that before)
well when i change methods i'm no longer the same; for Roux i had to train my white/yellow for U/D, just to have something familiar in every solve to ease up on my brain.
when learning, i learned how Roux piece relationships work. but could i be colour neutral right there?
i can still do full colour neutral, but it takes so much brain work because my brain is trying to relate all that stuff to CFOP. if i had magically developed an eye for piece relationships, i'd breeze through that no problem. the only reason i can do CMLL normally is because i remember all those patterns from COLL.
further evidence that my brain has simply stored 6 times as many color patterns:
sometimes when i'm solving and my brain goes lolwat for a second i end up inserting an F2L pair with the corner and edge both flipped, resulting in a terrible reslot. and it always looks the same. i wouldn't get the edge in right or the corner in right, both would be flipped.
the reason is because for a second i totally forgot what my cross colour was and i would start assuming it was one of the other 2 colours on the corner piece. then when recognizing the F2L case by looking at 1 sticker on the edge piece, i'd assume everything is normal and just insert it normally as if my cross colour were different.
the result is the wrong colour on the D face (obviously) and the edge flipped.
this happens about once every 50 - 100 solves and had never happened before i became comfortably colour neutral.
methods, methods, methods