Nice little guide there. I like the layout. However, I can say with 99.5% certainty that there are no "specific spots" where you have a a better chance of finding a certain piece of loot. I've found 3 or so Zorbi Helms (don't feel bad, I've looted a lot), and they were all in different spots (as I recall). Even if there was a higher chance of looting certain items in certain areas, it would be near impossible to prove.