I will start off by admitting that I am not a hardcore crafter - mostly I am in it for the fun - but there is one thing that I have never been able to understand, and that is the tendency of synths to blow up even when they're way below cap.
I have level 80 cooking and I regularly detonate honey, low level pet food, and even roasted corn for guild points (a level 2 synth - one that I have broken 3/24 of today, on the day of the crystal). I have an alchemist friend who has similar problems with synths such as beeswax and his craft is at level 99. My question is simply, why? I can't imagine it has a significant effect on the economy.
It is, however, extremely irritating. Not only is it completely ridiculous, but on a more practical level, particularly for people like me who aren't dedicated crafters making 12 stacks of something at a time, losing an ingredient often means you're one item short of a stack and therefore unable to sell the items without more scrabbling around looking for another of that inevitably rarer or more expensive item.
In short, I would like to ask the developers if it would be possible to make any synth below your current skill rating a 100% success, excluding desynthesis and more logical cases such as being hit by a monster. I would see this as a "usability" adjustment rather than one to increase profits - if nothing else it would preserve my sanity a little longer.