I'd rather they just make materials/nq items instant synth and have an actual mini game for HQ items like someone mentioned elsewhere. Put a 4/5 level cap on how high you can craft over your level and be done with it. Doesn't matter how you present it, when you gotta do the same thing over and over thousands of times, it's going to suck.

P.S. Broken record here but if you're failing stuff 10 levels below you AT ALL, you don't have any idea what you're doing. Check if it either requires a book or support. Even then you shouldn't be failing...