Re-terminate cardas speaker cables DIY?


I have the wire of a cardas speaker cable exposed and possibly oxidized just below the connectors(fork style)
I wonder if I could just cut the cables, remove coating and just use screw-tightened connectors and put some heat shrink tubes on them, to have just as good as new sound?
Or any other suggestions? I've heard cardas uses some kind of coating on their cables so it's hard to solder them.Can't afford re-termination at cardas
Thanks
tele09
Use crimp-on copper sleevings. Then screw onto that. 

https://www.partsconnexion.com/crimp-sleeves.html

You can find cheap versions of the WBT crimper for $20 or so. :) 

Also, much prefer WBT over Furutech for reliability and build quality. 

Best,

Erik 
Cardas uses a litz wire construction (most of their cables) which has each individual wire strand coated with an insulating enamel.  To properly re-terminate a Cardas wire, you will need a solder pot which creates enough heat to melt the enamel coating thus exposing the bare copper wire.
If using copper sleeving, is it still necessary to melt the enamel coating of the wire or will there be a good connection with the coating still there?
Any other suggestions?
Post removed 
 I agree it’s best to leave them alone probably, however, what are the odds that the cable is oxidized if it’s been exposed for some months?
Also, if measuring the resistance, what would be the reading of a good cable and what would be if it's oxidized?