I tend to resist generalizations or conclusions since the effectiveness of cables raisers *in a given system* depends on a number of variables: (1) local weather/humidity and amount of static electricity present; (2) amount of local seismic and structural vibration; and (3) which particular cable raisers are employed, e.g, suspended by fishing line from the ceiling, etc. You can also throw in (4) the listening skill and ability of the listener while you’re at it as well as (5) how well integrated the test system is, including whether it’s in absolute polarity, in phase and (6) whether the software used in the test is in Correct or Reverse polarity and (7) if it has been overly compressed.