Yep, firestiks are great. Now for the 18' "myth". Electronic length is not a myth. 18 ft physical length is not electronic length. If you have full wave electronic length on your coax, your swrs will be easier to control. CBs are not as big of a deal as some radios because of the lower power and more importantly, frequency range. Still, coax electronic length makes a difference and if you co-phase, electronic length is most important. Otherwise your transmit patter will be all screwed up. I've worked on many AM arrays and length is not a myth, just the way most people relate it.
92 XJ, 4.0 NP231 - Stock to rebuild for my daughter, 235x75R15s
95 YJ, 2.5 NP231- 1" shackle, 4.0 tb, 19lbs injectors, e-fan, 31x10.5R15 Treadwright tires.
93 ZJ, 4.0 w/AW4 NP231 - 2" BB, 1 inch spring lift, 31x10.5R15 Cooper AT3 tires.
In GOD we trust. It's a Jesus thing.