I'm using the i330 augmented gear and I can reliably macro 100% HQ 3 star recipes (70 durability) as long as I start with 7000 quality (most of the times 5000 quality is enough but 7000 is 100% guaranteed). I use Tempura Platter NQ and my final stats with it are 1500 craftmanship, 1402 control and 493CP.
No way in hell I'd go through overmelding V and VI, if you buy them and have bad luck, you can easily blow up dozens of millions of gil with the last overmelds. Granted, I only craft food so this works for me. Omnicrafters have no choice but to get the ala mhigan set and meld it.