JG speedfit 4 port manifold CH system

[Hillard]

Hi I’m going to fit a 6 radiator CH system using 22mm JG speedfit and teeing off in 15mm to all rads, is it worth using the JG 4 port manifold ?has anybody used these before on CH system and are they reliable regarding leaks in years to come or would you forget using them and just tee off to rads using 22mm to 15mm tees

Thanks for any advice