Actually I agree that OD could be raised to 9 in Extra - 8 feels quite easy here as map don't have any large streams, + rhythm is very repetitive & predictable. OD 9 would be more challenging and would fit better for Extra challenging tier.
About AR: 10 is definitely feels too fast and doesn't works well with choosen patterns, but if crn wanna keep it close as possible to "original" settings I have nothing against this - please consider map's age, and reading fast approach rates is part of skill too. For those who do not want or can't play AR10, there is one more Extra diff with lower AR to enjoy.
500th post in thread hype
About AR: 10 is definitely feels too fast and doesn't works well with choosen patterns, but if crn wanna keep it close as possible to "original" settings I have nothing against this - please consider map's age, and reading fast approach rates is part of skill too. For those who do not want or can't play AR10, there is one more Extra diff with lower AR to enjoy.