My amps are on 7" amp stands and had the same problem. I just made some cable lifters the same height as the iec and used rubber bands to hold the cords in place. I still had to use the teflon tape on the cord ends but now it is straight with the iec with no sag at all. After that I did the same for the ic so there would be no sag also.
Not that hard to do and cost about 20-25 bucks for four.
Not that hard to do and cost about 20-25 bucks for four.