i dont really believe in this trick too...
first i was trying to upgrade my super+5 1 soc tao armor lvl 100 in tc and 50 metz failed
now the max durad was down from 41 to 38, so i was useing the trick durad went down i was putting 10 metz on it nothing after taht i used the trick again my dura was now 23 and i spent again 20 metz and now the gown was lvl up ...
but it was 30 metz failed with the trick maybe i'm only not lucky but i dont really believe in this trick