IIP - Monster/Item Droprate Database

I will not take any information that is simply an "accepted number."

Eh? I'm not going back to wolf spiders. I misted them from 100~130 and that number is from data that I gathered. If you really want, you can do the work.
http://www.southperry.net/forums/showthread.php?t=530

Good luck, because the exp from the screenshots at the bottom of guide aren't only from wolf spiders, they're from other monsters as well.

Here's the "evidence" though, from my guide. Take it or leave it.

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Using the data below, I have determined that Ilbis have a 1/20,000 chance (0.005%) of dropping from a Wolf Spider. IDK the rate compared to other places, but Wolf Spiders have the highest density (spawn / map size), thus is the best place to hunt for ilbis. The data is pretty consistent, since the number of rotations pretty much matched the average training time for an ilbi to drop. However, most people will get either 60 rotations or below.

* When I ask my friends, they say that they barely make 60 rotations an hour. Using 60 as the multiplier, since there are 35 spiders in the map, thats about 2100 spiders killed per hour, or 2.5 mil exp per hour. (average of 9 hours per Ilbi.)
* As I got better at it, (and maxed Mist, Explosion, and Booster), I found that as a third job mage, I can consistently get 72 rotations an hour. Since there are 35 spiders in the map, that's about 2450 spiders killed per hour, or 2.9 mil exp an hour. (average of 8 hours per Ilbi.)
* As an Arch Mage (with Lv 12 Elquines, Lv 7 Fire Demon, and Paralyze), I can get about 80 rotations an hour. Since there are 35 spiders in the map, thats about 2800 spiders an hour, which equates to about 3.3 mil EXP per hour. (average of 7 hours per Ilbi.)

Rotations per hour means how many times I can go around the map in an hour. There is a set amount of wolf spiders in a map so spawn is pretty much stable and continuous. The data is according to how long I've been misting there before an ilbi drops.

I recorded the average number of hours it took to find an ilbi, and used other sources as well.

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I don't think this thread will be very successful. Nobody's going to contribute "only a few hours" to your cause, because people only care about the major drops. The other drops are NPC ect and nobody isn't going to look at those unless they're something rare like that Burning Gun. If you want to know, it takes on average of 8 hours for a 3rd job FP to get 20K monsters, and you're requesting 25K. That's over 10 hours of work.