Thanks, will keep an eye on those. I have had good luck with Mediabridge sub cables, speaker wire, and banana plugs so sure these will do the job just fine.
Funny thing, I bought an amp a few years ago and one of the plusses of it was it came with ~6 blue jeans 3ft RCA cables thrown in. I don't know how but I've had some issues with hum on some of those where other cables have had less. I know those are supposed to be really good and they look really nice but not sure on the ones I got. It's possible it's something else so who knows. I'll keep using them where it makes sense and if I don't get any negative results. But will try a few other options as deals come up.