Yeah even for salvage2 and dynamis dc mobs youll need about 1kish attack to cap. People underestimate that shit, those mobs are still 95ish. Most dds in their tp set have 900-1kish attack without buffs, curry should cap you for most ws on old content except for reso/drakesbane/shun.
Oat polearm is amazing for old content because of jumps, should be better than upukirex for anything weaker than delve1(actually might be able to squeak it by for delve1 since theres more acc gear available now and buffs are stronger, would need the 15acc augment and then even still its gonna be like a pretty big loss) but for chaining 115 and weaker exp mobs, should rape all, second only to mythic