The higher level the area is the higher the probability
If the probability is 5% you get a 1 in 20 chance it will drop. If you are in a 8 man party you will get a 1 in 20 x 8 = 1 in 160 chance it will drop for you. You may solo farm a boss and get 2 drops on the bounce or you could do it 50 times with no luck, persistance pays. Depends on probabilty asigned to said item and just how damn lucky you are
Turning off the anti farm notification isn't doin you any favours, although i haven't noticed anti-farm kickin much of late tbh
having high level of wisdom will give you a better chance of stripping mods of a crappy weap without loosing it totally, but it won't effect the quality of the drop in the first place. Run 600 chests and your bound to get a few decent drops as apposed to someone running 20-30 chests
It may help to hang a silver horse shoe around your neck and throw a pinch of salt over your shoulder before you play!!
