The Caddy has a good min/max ratio to begin with. I would go with ED%/Max jewels over ED%/Min.

`Insolence`: The full set grants 30% FHR. If he's rolling Bloodfist, that's 60%, which isn't bad (5FPA Recovery). If he wants a 4FPA recovery, he could put on a few charms (86% is next breakpoint).