[NotMyWay]

I dont believe in patterns, but everytime i just want to enhance only 1 item, it seems to fail/break often. everytime i want to enhance mulitple low level items, or i prepare a lot of extra money (i.e. i am prepared to keep buying until i get the result i want), i eventually succeed. there was a time when i prepared 10 lix in advance and wanted to get to +6, and i even had leftovers. the next day, i prepared 3, and kept changing characters to produce more lix. i kept failing, and used more than 10 lix.

It could be a coincidence, but i think enhancing several times in a row before logging out might increase ur chances.

but then again, there is a physcological factor, maybe the devs want players to prepare more CS items than needed before enhancing their rarest items...