This type of problem is endemic to many overbuilt Power Cords -- only reliable solution I know (beyond shimming them up) is the Furutech NCF cradles -- but kind of big $$ just as supports -- although used carefully the NCFs can improve the sound (but overtighten them and they can kill things dead)
Anyone Having Problem With Cardas Clear Beyond XL Power Cables Falling Out Of Equipment
I love my new Cardas Clear Beyond XL power cables , however I am having a problem with them either coming loose on wall receptical or loosing contact on my Shunyata Hydra Triton 1. They are just too heavy. Any suggestions are appreciated.