You're absolutely correct. Linear on linear is how it should be but circular also works. Depends on location. Sometimes one antenna seems to work better and if it's by chance a circular one everyone thinks that's the ticket. Trial and error with this one really. I also had more success with a better circular antenna but real gain comes from boosting the signal. When boosted the right way I notice little difference, circular works as good as linear. The rest depends on the design you like...