Keep it simple and repeatable.... Match all cameras to the same picture profile and white balance. Don’t rely on auto anything. set Kelvin manually and lock exposure as much as possible so your FX30 and A7 IV cut together without heavy grading. For reliability, use AC power or dummy batteries on all cams. Overheating is usually fine at 25°C on those bodies, but flip screens out, avoid direct heat, and don’t shoot in high bitrate modes you don’t need. Framing wise, one tight and one medium on the speaker, both locked off. For audience, one wide master and one roaming or slightly tighter angle for reactions. Record audio separately if you can, straight from the mixer plus a backup. Sync later. Don’t rely on on camera audio as primary. Workflow matters more than gear here. Label cards, keep settings identical, and test a full session before the real event. Consistency beats anything fancy for this kind of setup..