having just figured out that one can place way of the obsidian  on ONE SYSTEM  25% industry OR on ONE BEHEMOTH 20% industry for all systems in aura it got me be curious of the methods (if any) of increasing a bemehoth's keii aura range  (all honorable actions can also be applied to a behemoth's aura)

EDIT:  neutral law hissio holyday act has 15% extra radius sadly at 10% production cost .. (probably never worth +10% on  1-2 edge systems while penalyzing every system including your core systems )

Well, it's definitely situational. Sometimes just an inch is missing to get another system within range. And at some point extended range might not be needed anymore. I just hot-swap the modules in and out if needed.