Well...without reading through the full thread (I'll get to that later), I decided that I should post up my CB Setup.
I run a very simple CB + Antenna setup, with no modifications to the radio, or external accessories (read, amps, etc). Out of the box, my SWR was 1.1:1 on all channels, without tuning the setup.
I run a Radio Shack brand TRC521 Radio ($79.99) with weather alert, instant 9 and 19, full 4W of power on all 40 channels, and channel change buttons on the remote (very handy for quickly changing channels on the road).
I installed a Wilson 5000 Thru-Roof mounted antenna ($99.99), in line with my B-Pillars, and ran the coax down the b-pillar on the drivers side (since my stereo wiring all runs down the passenger side) and into the radio.
I added ground straps for the hood, doors, hatch, and exhaust. I also added a larger gauge ground cable from the battery and the alternator, and grounded the starter body. The stereo is grounded to the chassis as well. I get zero interference from the radio, even at high volumes with the squelch turned all the way to 0. I get zero static, unless I pass under high-voltage lines. My SWR with my roof rack basket mounted is 1.4:1 (very acceptable) and without it is 1.1:1 on all 40.
On a recent wheeling trip to Rausch Creek in Tremont, Pennsylvania, I was picking up CB transmissions (NOT SKIP) from Hazleton all the way down to Harrisburg.
On another trip to Rausch, I was picking up Skip from as far away as Oklahoma, and talking right back, without any issues.
On a typical day, I see anywhere from 10-20 miles of range on the highway, depending on terrain, and the other persons radio.
Previous was a Cobra 18WXSTII with a Firestik II with a body side ball mount, and I couldn't hear the tailgunner in my trail group, not 500 feet away.
I had used a Cobra 19 Ultra III for a while in place of the Radio Shack unit, because my external speaker blew out on me, and the Radio Shack one didn't have an internal speaker. My SWR with that radio was 2.4-2.7:1. I reinstalled the Radio Shack radio, and it read out at 1.1:1 again. Perfect!
No amp, no sideband, no tweaks, no peak or tune....just out of the box perfection!