Is it the uneven lengths or cosmetic blemishes hurting me

Yea, I saw sold for just $250 which was a deal for someone and a hard lesson for yourself.
Audiophool can be a picky lot ... Lol.

I wish you luck but I fear Folkfreak may be correct as I just do not see any others for sale with cosmetic hiccups so between that AND the unequal lengths the odds are stacked against you for sure.

I know you said Nordost will not help but do you have a good trustworthy store near you that may do the work for you?

I must admit I had not bothered to look at your ad until now.
Your price is fair I agree, I would not be overly worried over the cosmetic damages myself.

However I still believe it is the odd lengths that is the killer.

i May be one of the few who have actually used similar odd speaker cable lengths and I honestly could detect no imbalance or difference between channels.

So as you may be close to right price, obviously you have not found that special buyer who is likewise unconcerned over the unequal lengths.
Best of luck as they are great cables no doubt n the right system. A little lean at times which could be a boon for those with excess bass energy to tame.

Dweller
I see him saying the damage is to the shorter set.
Although no clue as to how far from a connection is given.

I guess I will be the elephant in the room and ask....
Why do you even have an unequal length "set" of cables?.

I could use unequal length cables due to my rack placement being 6 ft and 13ft but I use equal 13ft lengths for both.

Hardly can be called a "set" imho.

You may be better off marketing them as separate sales, one as a high quality center channel cable and the other as a high quality line level subwoofer cable.

I honestly think the odd lengths are having a large detrimental effect on your sale.

Moved through plenty of Nordost cables in my life and ALL of them sold very quickly at the right price.

So if I may be so bold as to opine they just cannot be " the right price" yet.