Dueland


I am in the market for a new pair of cables.  Last year, after a lot of online research, I decided to try the Clear Day Double Shotguns only to find out that they are not longer being made!
I am now considering, after reading a number of rave reviews, getting a pair of Dueland 12ga cables.  The only thing that is putting me off is a few online comments saying they are not good with low efficiency speakers.  I have Spendor s3/5R which are 84db.  I have a asymmetrical setup so they would be 5' x 13' in length.
Anyone with experience regarding this?
Thanks!
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Jesus, you are right! " It' s (It's)  Duelund no(t) Dueland." 

Soix:  As with all things cable related there doesn't seem to be anything like  complete agreement on whether using two lengths of cable is detrimental to the sound.  I really want to avoid having a big coil of speaker cable behind my rack which also might not be desirable soundwise.  I am using Kimber 8tc now with different lengths and don't hear any bad effects but, of course, I didn't compare them with anything.I would be interested in hearing Almarg's opinion which is always well informed.
No problem with different lenghts. Zero issues.  I have a 10 and 20 foot lenght and my sound is glorious! Plenty of folks have differing   lengths and the sound is exactly the same as equal lengths. I have made many unequal sets for folks. 
Grannyring:  Thanks for your advice.  I no longer feel any hesitation in purchasing them.
I'm sorry.  I'm an idiot.  And I learned something.  Might be tough to resell them though.  Just another thought. 
Soix:  Don't be sorry!  A lot of people feel that all cords must be the same lengths or the wrath of the great audio spirit will descend upon them.  In some cases they may be right.
They would be harder to resell but the price is pretty low so it is a risk I am willing to take. A number of experienced audiophiles swear by them so I feel comfortable giving them a try.