Personally I feel there should be a fail safe built in for just this occasion. People get frustrated when the rng seems like its out to get them. I suggest that if you break a quad meld 20 times in a row for the same piece of gear you should automatically succeed in your next attempt. I would boost the break to maybe 30-35 for a quint meld. That way even the most unlucky people don't quit this game out of sheer frustration.

It's bad enough that we have to fight the rng for dungeons/raids we shouldn't have to suffer it for crafting as well.