Contest Big Bertha: 80 to 109ft
We are always glad to custom design a Big Bertha that fits your exact needs.
That said, here is a popular Big Bertha pre-configured for Contesting

Contest Big Bertha
109ft BigBertha
Run rate and blast through multiplier pileups. Enjoy the family-friendly 10 x 10ft lawn footprint with no guy wires. Vandal resistant and virtually maintenance free. Additional antenna configurations and customizations are available.
6M Yagis @20/60ft 2-high stack
Tribander 10/15/20 @48.5/99ft 2-high stack
40M Yagi @109ft
80M/160M Vertical @ side-mounted to Big Bertha
Typical design TIA-G and IBC-2009 for 90mph basic wind speed no ice, 60mph service wind with no ice, and 40mph wind with 0.50 inches of ice), Structure Class II, Exposure category B or C, Topographic category 1, Earthquake category not considered (site location Ss < 0.33)