Sorry to copy Menage on the title:P
But I have noticed some weird thing, which I am describing below:
I am doing clothworking (lvl 51, exact lvl of the tier, yes i know it halves when its +1 lvl from the actual tier lvl), using the silks of Crucifix. Tier 16.. lvl 51 and up.
I currently recieve 9,227 exp for making one thread.
I am absolutely sure that I have been recieving slightly over 10k for spinning Lynx silks which are tier 15, lvl 48-51 (i would know.. i did a hell lvl of 49 with them

)
So only condition here i see is that different silks give different exp ? so lower tier silk (lynx) gave more exp then higher lvl silk (crucifix)? Or is it a bug ?
PS.: -My char lvl is 52, hence no exp penalty.
- I use same conditions - RRT+ACCEL
-Yes I have lvled some other skills, but they must increase instead of decreasing the exp, right ?
Any professional crafter advice or experience ?
Thanks for reading,
Music