Novus weapon upgrade system findings

[Nekodar]

So exactly how blasphemous would it be for a dps (drg) to go outside the "accepted" norm of 44crit/31 det and use a few points of accuracy for the last 5 or 6 melds that really taper off success wise? I'm currently 53/75 and about to move on to tIV materia. Till now I have spirit bound all my own materia, and haven't been very lucky with obtaining useful IVs. Almost 100 pieces of gear so far with about another 30 to go and only 3 IVs.

The secondary stats don't matter so much that you should go broke just to get what someone decided was "the only acceptable stat distribution".
I say go with accuracy (if you need to meet acc cap for something or can swap acc gear on other slots for something that give better dps) and otherwise consider even skill speed.