I don't like the way my ToM's X axis handles the HBP cable: it keeps rubbing against the Y axis carriage, and the connector is constantly subject to different forces, which some people tell me can lead to HBP failure.
Since I anchor my HBP with just three bolts (that's all that's needed to align it... if you use more, you are probably twisting it), I used one of the corner holes in the X carriage platform to hold this beam, and a ziptie to hold the cable in place at the end of the beam.
That way, all the cable's forces get transferred to the X carriage body, and the connectors are spared all stress.
Update: Made it shorter (what was I thinking?) and easier to print (there's a thin membrane between the nut trap and the bolt hole now, to keep the trap clean).