Topband: 160m Vertical Ideas?

[Ed]

Greetings!

Trying to figure out my scheme for 160m.  I currently have three crank up towers about 35’ apart from one another. One cranks up to 106’, the next to 70’ and third, to 89’. 

I figured I could shunt feed one of the taller towers and call it good but I’m concerned about interaction amongst the towers. 

Another option is to install an independent vertical about 150’ away..   This would minimize any interaction and would allow me to lay more/longer radials.  I could go up about 65’ in height. 

Inv L is not really an option, as I have no tall trees nearby. 

Thoughts?  Ideas?  I welcome your feedback. 

73,

Ed NI6S