Gauss and ERPPCs seems like a given.
Gauss+LPL+ERML still seems legit, though it's as hot as ever.
UAC5s feel ... underperforming. I've tinkered around with boating them (meh?), or running 3 of them with a set of 3-4 cERMLs (newsflash: it's hawt).
Does anyone find that the UAC10 is still worth running now? In what config? The -C variant's left arm seems necessary for the 3xUAC5+UAC10 build, though it would still be ammo-starved.