Speaker wire - equal length or shortest?

I have heard a demonstration of the OCOS which seemed to support the claim. But you need to like the sound of the OCOS. If you like it you will call it fast. If you don't like it you will call it lean and perhaps a tad metallic. I have no doubt that it would sound great to most ears in the right system, but also awfully thin and bright to most ears in the wrong system. Just beware it is not a middle of the road type cable - definitely tipped in one particular direction.

Paulwp - good on ya sport! For being a dissenting voice - I can respect that. I have also heard systems (with Kimber 8TC as it happens) that had unequal long lengths and I did not find it at all irksome. So Albert got it right - same lengths does matter, so that is what you should do if you want optimum performance, but mileage will vary depending.

So you need to balance risk and return. There is a risk you will be unhappy with the unequal lengths, and how much would you have saved, the distance between your speakers cannot be that great can it?

I got really close to a RHUBARB for a moment, but do not want to devalue it right now.

I agree with Albert. It is less important to have the interconnects the same length (but desirable if they are), but definitely, different speaker cable lengths is quite audible and irritating over time.