Chuck wrote in
:

....
As others have pointed out, performance
will be fine. The RG-8X has a foam core
that some have found will deform when
subjected to a sharp bend, changing the
characteristic impedance of the cable.

If you anticipate sharp bends, a solid
dieletric might be preferred. For long
straight runs, the RG-8x is fine.

Yes Chuck. There is an attraction amongst hams for foil / foam coax,
probably driven by the loss figures, but without regard to the many
disadvantages that such a construction brings, or the very poor
implementations of same (not to mention any brands, lest I should be
buried).

Owen