I'm not impressed son, you still don't know what you're talking about.
Every radio, coax, and antenna manufacturer will back up what I'm saying.
Find one that will back up your b.s.
In technical knowledge ALL the CB operators in the world combined still fail to equal one not particularly bright amateur radio operator.
WE actually had to study and take tests to get our licenses.
all the typical CBer needed to do was show up at a truck stop
or Radio Shack with $100...
Rather like someone looking for a "lot lizard" come to think of it.
Coiling Coax doesn't hurt a thing... except leave extra coax you don't need
inserted between the transmitter and the antenna.
If it does hurt the proper place to coil that particular piece of coax is in the borttom of the first garbage can within reach.
And though the line loss at 26-27MHz is "low" with any decently made coax
it's still loss.
and with ONLY 5w you need ALL of what little signal you've got
to get out.... rather than making a coil of coax slightly warmer.
Now balanced against all that, there's the all too likely possibility that if the cable isn't terminated correctly, rather likely with the POS we all know as a PL259 or it's historically ironic name of "UHF connector" (bear in mind in the 1940's 30MHz was "UHF")
which are by anyones account a cast iron BITCH to solder correctly...
You could wind up FAR worse off by shortening and reterminating
that "too long" length of coax...
Frankly I haven't soldered a PL259 since the early 90's
I use adapters from BNC to UHF or "N" to UHF because those are the ends
I put on all my Coax and I take the penalty of "insertion loss" as preferable
to melting the dielectric in the coax trying to solder a damned PL259 onto the coax.
If this seems a bit Bi-polar in the conclusions get over it.
There are two sides to this arguement and what makes one way better than
the other depends on facts neither side has brought up.
not the least of which is soldering skill.
AD