Hi NYM,
That's great you got such relief from your trial!
Surgery of any kind is frightening, being cautious is smart! I can understand your concerns about technology changing. This new wireless one placed by injection sounds intriguing and you can even get an MRI with it. I have no idea if it is used for CPRS but it certainly seems more appealing at first glance than traditional. IT might be something to look into.
http://stimwave.com/mobile/
Here is an article about early use of SCS with CRPS. Theoretically it makes sense to avoid more entrenched pain changes.
http://rsds.org/wp-content/uploads/2...-treatment.pdf
SCS is not something I can personally speak to or have considered but you have my support no matter what you decide. Let us know what happens and when/if you have your procedure.
Sending healing vibes,