Hey Bassphil,
I must say that I also have an A-P 1/4" guitar cable and it's absolutely top of the heap.
A few years ago I did an extensive comparison of guitar cables for Just Jazz Guitar, comparing bottom-of-the-closet generics, all the way up to a $400+ cable that absolutely sucked. (It's a make that provides high-end audio cable BTW, so they'll go unnamed here. People that MUST know can dig up the old JJG).
Anyway, had I had the A-P guitar cable at that time, it would have been in my top two or three, I'm certain. It's too hard to reproduce the comparisons that I did at the time, with an assistant, but I'm very confident that this is a top echelon cable. Right now, it's connecting my keyboard to my Acoustic Image "Corus" amplifier, producing an incredibly clean sound, top to bottom.
BTW, since you're a bass player, do you know AI? Lots of acoustic bass players and jazz guitarists use their cabs. For electric bass you'd probably want their extension cab. Still, when I tested one back in the late nineties, I took it over to bassist John Adams' (Dallas, UNT grad) studio for him to play both his acoustic and six-string electric through it. Of course, we were impressed with the acoustic's sound, but our jaws dropped when he started a funk line and popping on the electric. Man, the guy's a monster and sounded fantastic through the little AI. Check it out if you don't already know it.
Dave