Cumulus Support

I understand that using CumulusMX on PC with WeatherLink Live requires a Pro account at weatherlink.com to obtain historical data for times the PC is not running. Would using Meteobridge Pro Black with WLL obviate this requirement? In other words, can CumulusMX on PC automatically obtain historical data from the Pro Black (just as it does from weatherlink.com) when CumulusMX is restarted?

Only if the Pro Black is (can?) emulate a Davis VP2 logger and you connect as a VP2 station.