Bob Crump makes the HSR series of cables and he has one that he designs for tubed products. I think you should try several cables (with agreements to return those which you decide not to buy) and decide what sounds best for yourself. What others like will not always correspond with your preferences. Bob's cables are a VERY good starting point.
I am friends with Bob so my opinion is not unbiased but ask around and you will find his reputation stands for itself.
I am friends with Bob so my opinion is not unbiased but ask around and you will find his reputation stands for itself.