15mm LWS or 19 mm Studio for Sony FX9, A7SIII

Hello,
I have 3 cameras - Sony FX9, A7SIII & A7III. I'm trying to figure our is there a particular standard for rod support for ensuing I dont invest again in rod supports and accessories.
I have 2 cartoni fluid heads with euro style plates. I've been hunting for a stable, reliable & futureproofed quick release base plate system with either 15 LWS or 19 Studio. So my question which rod standard to go for or everyone is going towards.
From a equipment standpoint it would be whole 9 yards (mattebox, wireless FIZ follow focus, vmount, teredek, monitor & d-box)
Appreciate your inputs.
I have 3 cameras - Sony FX9, A7SIII & A7III. I'm trying to figure our is there a particular standard for rod support for ensuing I dont invest again in rod supports and accessories.
I have 2 cartoni fluid heads with euro style plates. I've been hunting for a stable, reliable & futureproofed quick release base plate system with either 15 LWS or 19 Studio. So my question which rod standard to go for or everyone is going towards.
From a equipment standpoint it would be whole 9 yards (mattebox, wireless FIZ follow focus, vmount, teredek, monitor & d-box)
Appreciate your inputs.