I noticed you didn't post the gains at vhf high for the quad stack above.
Code:
Freq net gain
177 7.37
183 7.81
189 8.29
195 8.69
201 9.19
207 9.31
213 9.90
and that's not the highest the main lobe is forked with the highest gains
at +- about 20 degrees from horizontal and look like this
12.26
12.98
12.70
13.26
13.19
13.49
13.64
SWR is excessive at channel 7 but good enough every where else.