Hi, I have 2 x 4ele 10M Force-12 yagis - should I... a) stack them horiz. polarisation one above the other @ 70 & 58ft, OR b) mount them vertically polarised on the ends of a horizontal boom @ 70ft? Can't be bothered to do the modelling! Anyone have any ideas? Thanks in advance, 73 Steve G0CKP/AB6ZA