Glad I kept my 2 antenna Tracker DSP. That switch can't turn, even with gloves off, and the battery door screws shut.
And it has the easiest interface going.

Isn't "optimal" subjective? What if the person is on a hill, or on a flat, or in a terrain trap (gully) or steep creek trap, wouldn't that change the 'optimal' antenna to use?

I suggest, if 3...