Well i play on Zeus server and I notised that soem ppl spend a lot time to kill Nos (40 lvl) at Garden of Eva, bcause they drop on spoil CBP at 80% chanse. But at our server they are too few for mroe ppl, so they fight everytime there :)
I desided to look for more comfortable plase to spoil usable materials and look what i found
lvl 21 mob - Relic Spartoi -> you can find it in Elven ruins - he drops CBP on same chanse and he is low level and there are no ppl there :)
so I went there at 14 lvl and spoiled 500 cbp untill lvl 30 where the mob stoped to drop :)