Bob Bob wrote:
In my experience though the almost only time I
want to cut coax to length is if I am using it for Z transformation
between antenna and TX.

Unfortunately, when SWR 1:1, 50 ohms is at the
center of the SWR circle and is the target impedance
to which it is impossible to transform (unless feedline
losses are very high). :-)
--
73, Cecil http://www.w5dxp.com