Well well well, i farmed for 6 hours yesterday and I got 3 green and 5 whites, I used it on my pants, broken, use another, broken and now I use the last one broken.
And I bought 2 more green, one failed and the other... broken. So pretty much. I got ripped off of my zeni and I lost 6 hours for nothing except putting my pants down to +3.
You should not have this many broken a like I did so here is my suggestion. Actually increase the chance of success. Because if this is the BS I have to put up with now because upgrade can’t function fairly. Then no point even farming in the first place except for zeni.