With the WB68 you need to run additional cable.
Replace the WB68 with an SWM-8 and the HR2x DVRs only need 1 cable that can be split with SWS splitters (up to a total of 8 tuners). The R10 would still need 2 cables from the legacy ports on the SWM-8, as it is not FTM/SWM compatible.
Replace the WB68 with an SWM-8 and the HR2x DVRs only need 1 cable that can be split with SWS splitters (up to a total of 8 tuners). The R10 would still need 2 cables from the legacy ports on the SWM-8, as it is not FTM/SWM compatible.