Topband: Circle array small diameter VS Wider spaced 4 sq rcv arrays

[W0MU Mike Fatchett]

I currently have installed a 8 circle array by DXE.  It works fine.  It 
is built for 40/80/160 with the 50 ft radius as that is about all the 
space I have.  I find a rarely if ever need it on 40m so I was curious 
if a wider spaced 4 sq for rcv would out perform the circle enough to 
really notice on 80/160.  The circle allow me 4 more directions which 
has come in handy.  I would prefer an antenna that could be shared 
between 160 and 80.

Mike W0MU