tips for installing techflex split loom from the pros?

i know this is probably seems like a ridiculous question, but i recently picked up some of that techflex braided split loom to clean up my tower speaker wires to the neutriks and the small section between tower legs and the stuff just wants to curl up. i think i have it just right and then am at the final last inch or so and it bulges out somewhere else in the small run. any tips for working with this stuff? or am i just going to have to black tape both ends and then maybe on in the center? stuff would work great if it was just a straight run, but obviously, we're talking about a small half circle or arch. i bought the stuff to replace the cheaper flex loom stuff you can find just about anywhere thinking it would be a bit more plyable, but it is not. definitely looks better though. is there a trick to this stuff?