I have some stingers that were left all bent up in the corner of our equipment room, and now they are impossible to wrap due to being stuck bent for so long.
Basically it's like opening a new extension cord from lowes, the cable is warped and there is no cable memory to be wrapped correctly.
Main point:
Is there any way to restore the cable memory and straighten out the cables?

I have heard rumors of letting them sit stretched out in the sun for a couple hours they'll warm up and 'melt' themselves back into shape.

Try plugging in a 1000 Watt light or a blow dryer to see if you can generate a little heat in the copper while stretching the kinks out of the cable. Might be expensive for your electric bill

Warmest I ever felt an extension cable was when it was being used to (temporarily) hook up an FM transmitter. Didn't have it cranked up or anything, just "on". Warm wasn't quite the word for it, actually.

Andrew

Leaving them in the sun might work. I don't know if I would advise it. But definitely work out all the kinks that you can and leave it stretched out somewhere.

Maybe you could use the 'hose towers' that your local firefighters use to dry out (and straighten) their hoses?

Andrew

A firefighter told me a couple years ago that ever since they changed from canvas-jacketed hoses to nylon-jacketed hoses they no longer hang the hoses out to dry.

Mildew and rot isn't a problem with modern hoses anymore. So no need for a tower. Although lots of fire stations still have them.

At least the firies still have the tower for recreational abseiling in their "in-between" time.

Andrew :-)

I've used a stairwell overnight to hang a couple of 25m XLRs and it did the job.