Sixness. Hello!. Regarding the Restech,-- suggest you get a copy of your Restech test results and look at the graph on it. You may have had over 100 episodes but how many of them were acid and how many were non-acid. If I remember, for the Bravo, acid is considered with pH of 4 and below, but Restech lists ALL of the episodes and their pH . That could be the difference. Just a thought,--not a medical opinion. (Also, I don't think the Bravo measures vapors or aerosolized reflux but the Restech does.