DefSport

IMO, I'd keep the compliance bushing hard rubber and do the forward inner bushing of the FLCA as a spherical. That way you lower camber loss as the tire loads up, but still maintain quite a bit of fore/aft compliance. The FUCA bushings aren't that large, so I'm not sure you'd see a huge gain going to spherical there except to reduce suspension friction somewhat.

That's probably what I'll do in the future when I decide to really refresh other bits of the suspension on my car.