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
I performed several extended cable auditions, and ended up with Audio Art cables all around - very musical and balanced, compared to the Anti-Cables which I found overly spotlit the highs, shortened depth, and ultimately became fatiguing. YMMV, of course, as i find cables are very system dependent. But these have served me well - they have stayed even as my system has progressed. Website is www.audioart.com with which I am NOT affiliated; I just enjoy their cables!
Thanks for your suggestions. I need long (30 foot) runs and audioart only lists up to 12 foot runs on their site, Slaw3. Cincy_bob, I have contacted Morrow about the question of long runs, am waiting for a response. I also spoke with Paul at Clear Day (what a nice guy!) and he had concerns about such long runs, but unfortunately, I'm stuck with 'em. Mapleshade advertises cable they say is specifically designed for long runs, so I may try that, too.
Call Robert at Audio Art, he'll custom make you anything you like, and will discuss your system and specific needs at length.
30 feet sounds expensive and may not be worth it. Various DIY speaker cable recipies may be worth looking into
Because of the cost, if it was my money I would buy bulk canare 4S11 and use bare wires instead of bananas or spades. If it is visible I would add Techflex to the outside and heatshrink the ends. It is a well balanced cable that I have found to be neutral-warm sounding and does reject interference well. I ran it through walls and bookshelves near AC and it is easy to run, is not stiff, and is the equivalent to 11 gauge. That should be a sufficient gauge for your long run. At that distance, resistance becomes an issue, so check out the electric measurements of any cable you buy. Good luck!