For the front, yes the Z4M CAB helps with the geometry. If you want monoball/spherical bearing for the FCAB, the M3 strut and top hat change the geometry a lot and was a significant improvement for the ZHP.
2005 ZHP Mystic Blue Metallic Sedan - (1/19 in NA) Koni Sport M3 struts, Eibach M3 Springs, M3 rear brace, Powerflex Black FCAB, "Camry" MOOG RTABs, K&N Intake, G.A.S. DISA, G.A.S. Rad Cap, SAP Delete
2012 X5M Black Sapphire Metallic - JB4, DownPipes, Exhaust
2014 M235i Mineral Gray Metallic 6MT - JB4 w/ MHD BEF, CP, TIC, DP, I, E, Pure Inlet, N20 MAP, BMS Oil Cooler Valve, F80 Rear Brace, GC Camber Plate