Doing the MLS setup. I keep getting a low SNR ratio (25-28) for all speakers. I have my RS meter set to 70, C weighting, Slow. Is this the correct setup?

861v6, Oppo83 (3xSpdif Mod), Wiim Ultra running Squeezelite, Tivo Edge, Apple TV v4 with Key Digtial Audio Extractor, Von Schweikert fronts and center, Triad in ceiling sides and rears, Aerial SW12, Orchard Audio Starkrimson 3 channel and Sunfire Cinema Grand amps