This is a golden tutorial! Man, I can compete for wr now!

Bro this would improve my time tremendously. Time to memorize the 154bpm songs

if I'm not wrong, Gangsta's Paradise should work too, shouldn't it?

I thought the perfect roll is just spamming rolls, but i use xbox one controller for pc, so i always try doing timing better to take more distance.

Spamming tends to hurt more than help. But yes since you have exposed our secrets you must die now Hornet

Spamming can work if you bind it to 2 different keys then just spam them both

Spamming isn't going to help unless you're alternating between your spam buttons. Still I doubt it would be better than just learning the timing.