Just an update... I received the FiiO cable and its great except that the diameter of the plug body is huge.
It won't work with any of the cases I use on my Galaxy note 3.
I spent hours on the internet looking for other cables that have don't memory wire or cost more than the earphones themselves and became frustrated.
Last night, I started examining the "memory wire" section of the original Shure cables... It appeared to have an extra coating in that area.
With nothing to lose, I got out my trusty X-acto knife.
After carefully cutting away the exterior coating / tubing, I discovered that the "memory wire" is a bare wire with the diameter of a small paperclip wire.
it's simply laid onto the original cable and stuck into the connector and then has heat shink tubing as a cover.
The "memory wire" on my shure cable is gone, the 215's work awesome and are comfortable!
Next future step in my DIY is to figure out how to replace the huge Fiio plug with a smaller one