o_o it's quite simple really, i do it most of the time around 75%?
usually if i get bored mining i started to not press it

it's the easiest at the edge xD

after u hit it the yellow bar glows abit n ur bar dissappear
and....
u might end up not getting anything it happens to me -_-
u press is n get nothing wow wee... geez -_-

i believe spam click wouldnt work.. coz i've tried it too and never got it once...

you've gotta place the tip of your cursor precisely right on the yellow line... and click when the green bar goes to the line

i believe the hardest part is putting ur cursor on the line correctly, the timing part is actually quite straight forward...

yup spamming doesnt works
i dont know about when the bar going backwards though
never clicked it when it's going backwards

i'm pretty sure it works both way...

It should.

Yeah, I know I've been able to get it to work both ways. I think it's just that you have to hit it at such a precise moment that any tiny millisecond of lag can throw it off.

i shuld try backwards sometimes eh?
anyway for the other's information
the line passes through the bar 3 times forth
2 or 3 times back
depends on ur luck

yeah well if it went back and forth twice.. i wont even bother with the 3rd one hahaha coz is about to finish mining anwyay

if u missed twice, dont bother pressing, it's ending xD
thats wad i do anyway