I wouldn't bother melding any ACC on my Novus since HA axe has 32 in it and by the time they release the next relic upgrade and you actually need ACC on your weapon for new content you'd have an abundant of Alex just sitting around from all the dailys, hunts..etc. It wouldn't be hard re-melding your weapon. That's my approach anyway as I don't plan on upgrading any other relic to Novus so I can afford to save my Alex. I'm getting Novus soon too and I'll go for full crit/dtr, perhaps 9acc or something if I fail too many materias, T4 shits cost 5ook atm its insane.