Look in /etc/cabal/Data/Data_World for the world?-terrain.scp files (9 and 10 are MF and PF) as the droprates are in there. To actually do this you are going to need to know the item numbers and the mob numbers too.
This part is the general map drops:
Code:
[CommDrop] TerrainIdx ItemKind ItemOpt DropRate MinLv MaxLv Group MaxDropCnt OptPoolIdx DurationIdx
0 0 416 0 .00000190000000000 110 200 0 0 0 0
The columns here are (i don't know what they all are):
[CommDrop] - Just and index, it starts and 1 and increments by 1 for each entry.
TerrainIdx - No idea but it seems to be 0 a lot
ItemKind - The item number
ItemOpt - The itemOpt (the same as you use in the cabalcash tool)
DropRate - The droprate
MinLv - Min char level needed to actually get the drop maybe?
MaxLv - The max level to get the drop?
Group - Not sure but it will be an index in anotehr file somewhere
MaxDropCnt - Max number of the item that can drop?
OptPoolIdx - Index from the optionpool file
DurationIdx - Duration index from that file, the same values as the cabalcash tool again.
The rate is from 1.0 to 0.000000000blah so just make the number higher. As with the general droprate do not just stick them all at a high number as this will just break things worse, increment the number slowly until you are happy with the rate.
Further down you will find another section:
Code:
[MobsDrop] TerrainIdx SpeciesIdx ItemKind ItemOpt DropRate MinLv MaxDropCnt OptPoolIdx DurationIdx
These are pretty much the same values as before other than the SpeciesIdx which is the mob number you need to look up first.
You can look the mob numbers up in the decoded enc files at
http://forum.ragezone.com/showthread.php?t=440222