I spooled up a Penn fathom lever drag 7:1:1 reel with 400' of copper this year after getting tired of the time it took to reel in with tekota 800s.
Like others have said already, it would be very very difficult to turn a mature King with that high gear ratio due to the lack of torque available. I'm going to keep if for finger lakes fish and Erie eyes, but it will not be going back to Ontario for Kings.