By Phoenix.Lucasta 2010-07-01 09:13:57
synergy is very different than normal crafting in that you can never lose your synthesis materials until you successfully complete the desired item. If your synergy attempt is unsuccessful you can retrieve your materials from the furnace once the session is over. If your attemp succeeds you will recieve the crafted item (nq or hq)instead.
typical skill up items are nuggets, like Dasva said, or using a crafting apron to make a smock. can probably find recipes on wiki as well. the idea is to never complete the synth but simply spam fewell and use any actions if applicable until the furnace expires and repeat again.
As far as i know and in my experience, you can recieve skill ups by:
feeding any type of fewell:
this is where most of your skill ups will come from. You can receive skill ups by feeding ANY type of fewell regardless of the stated balance for the item albeit you should try to match the balance. I would suspect skill up chances are better if you actually try to obtain the right balance but this is only spectulation.
performing action on the furnace:
thwacking the furnace to prevent an explosion can yield skill ups if successful.
using any of the other actions can yield skill ups as well.