I can see using both options dependent on the hunt, terrain, openness of country, etc..
Greg, great points.
I'm not exactly in great shape physically(or mentally) and am naturally a little lazy so the 1 or 2 days I actually 'pack' a 65 is better. That and 40x is enough for the country around here.
Unless you're one of those guys who is patient enough to sit and really dissect an area a mile away....
A big ass spotter would be the chit when you really need it.
Or better at last light? I don't know, never looked through the new uber versions.
I've been using a Minox 62 ED with the 21-42x eyepiece. Been thinking about selling it and upgrading to a Swaro 65.
Yesterday eyeballing a buck who was trotting in the wrong direction....