My brother is getting back into the CB deal. He just got a Bearcat 980SSB from Walmart DOT COM site. Figured it would have come bone stock but it does 20-25 on AM and up to 20W on SSB with 12.5V supply so its likely not bone stock. Anyway, I have not bought a vertical CB antenna in over 2 decades and my brother was asking about them and what to buy. My go to vertical has always been the Maco 5/8's, Radio shack 0.64 ground plane (yes hard to find), and the Imax2000 with modified ground plane and 1:1 current balun because its an endfed vertical. Before y'all blast the Imax2000 I know all the bad and good about them, its got its purpose here at my station, its really good on 15 meter and just so/so on 12/11/10 meter. So, I have an extra Maco 5/8's that he can use until he buys another Maco 5/8's but, he was asking me about this Sirio brand and I have no clue about them or any other recent brands. What is a good 11M vertical to get these days and are they better then the Maco 5/8's?? He will likely never be running more then a four pill amp not volted.