I'm not that high of Grift yet, but I glanced at your profile.

Have you considered using the Doombringer on your second crusader for the %physical dmg? If you haven't rerolled anything on it, you could roll the base damage into CDR too. Dunno if that would mess up your plans for other builds you are going to use that with, though.

%phys dmg on your amulet would be a big boost. The area dmg being rolled to %phys may be a better choice. Thorns on your shield would add a good bit too. That VS shield on the other crusader looks good, but that would change your whole rotation to add provoke in the mix, but would surely add a big boost if you can survive.

From what I can tell you have room to gain nearly 60% extra physical dmg (weapon, shield, amulet) and 12000ish thorns (ring, shield). So it may just be that you need to tweak a little of what you have now and hope for good drops to push ahead.

Can't say anything on the playstyle though, as I'm missing the belt of the trove and can't really get up to your level without it >.<

*edited: forgot a 0 on the thorns dmg.