Desynthesis Questions

[WuuTaii]

I haven't seen it mentioned but for GSM PvP Warwolf items are i70 and you can desynth them for skill ups and I imagine they can yield battlecraft III demimateria. Not bad since they only cost 625 Wolf Marks each.

[Sadana]

To level GSM (still only around level 39), I've made heaps of cheap jewelry to desynth. I also see the exp gained really slows down fast once the success chance goes over 50%, but I'd much rather (nearly) always succeed than have .5 more points and fail more often. :/