105cm silver + diffuser + standard reflector
105cm white + diffuser + standard reflector
There are no special reason to choose deep umbrella modifier for the on location portrait photography, they don't provide any magic effect as the KOL s promoted... whatever zoom para #$%^&*( ba ba ba.
I choose to use them as a fast setup huge softbox whenever the lighting setup time is limited, always use the white one with diffuser if you need a big soft light source.
Silver one act like a small light source either with recessed or protrude flash heads.
For protrude flash heads use standard reflector / umbrella reflector will reduce the hot spot... most observed when feathering the light.