Anti-cables VS. River Cable/cable lengths


Looking for some feedback regarding how these cables compare and any suggestions for other low-cost cables to consider. System: Creek 5350 se classic, Rotel 1072 player, B&W 703's. I have fairly long runs: 15 and 27 feet and am wondering how important it is to use the same length of cable for each run???

Thanks!
stuartk
The Morrow Audio cables are another alternative in excellent low-cost cables. I am using the Morrow cables in two separate audio systems, and the sound quality is outstanding.

There is a lot of discussion in the archives regarding whether pairs of cables need to be matched in length. The consensus (if there is such a thing in high end audio) seems to be that you probably won't hear the difference, but, considering retail value and the fact that you will probably always wonder if the sound could be better with matched-length runs, you are probably better off to buy your cables in matched length pairs.
Thanks Cincy_bob, for your input on both questions. What other cables have you compared with the Morrows in your decision-making process?
I found the Anti-Cables to be very fast and detailed and actually louder in volume than what they replaced, possibly due to their minimalist design, but they tended to be on the bright side, which I dislike. The prior owner of the Anti-cables, who had a 5-8 watt Almarro tube amp and horns said the same. But it all depends on your equipment