Pretty decent but a few issues:
1. the text is damn hard to read :/
2. you only have to be 64 to get level 55 items from a double drop, as well monsters are your level +1
3. lightning and wind may be the cheapest, but (from what i hear) to get the best out of them you need a huge amount of INT, so you hit the high end of your range more often than the low end.
Other than that, a very helpful guide that will help many people make some fg