Help, High power EP!!

Hello all, my new refractor's focal length mandates a 16-19 mm for a snidge over 200 power with my power switch at 4X. I had prior thought the 14 radians were a bit sharper than the 16 Nag type 5. So do you think bino mode at high power on the power switch, 18 radian, 19 panoptic, or 16 nag? Hand tracking of course, I'd place sharpness a bit ahead of FOV. Thanks in advance.
Mike :S

I'll have to suggest none of the above.
Since you've said that FOV is not paramount, you might give some thought to University Optics orthos, which are at least as sharp as radians IME and about 1/3 the price. They come in an 18 mm FL.

Bob