I tried to lube my original throttle cable as it was very tight (21,000ish orginal miles on it). It worked for a bit and then broke while I was out on a drive.
I then ordered a new OEM style throttle cable from a Pantera vendor and installed it. I always thought it felt tight and I theorized that it was just the design of the Pantera throttle bracket and the tight curbs that the cable made going through the firewall and down to the tunnel area. Unfortunately, this cable began to fray and eventually broke after a year or so (approximately - and BTW I don't drive my car much).
Next I purchased a Lokar "cut to length" stainless braided throttle cable, built a new aluminum bracket, added a return spring and have been running without issue since.
I personally like my new cable and bracket much better than the original but that is just my two cents. I know several owners are running OEM style cables without any issues. Maybe it is just my car. It seems to fight me on everything I do to it.
Good luck on your endeavors.
P.S. Here is a link to the Sticky Throttle Cable Thread
that pointed me in the direction of buying the Lokar throttle cable. It should give you some other members view points and hopefully help you make an educated decision.