How does the USO Spotting scope stack up to stuff like the Kowa 660 w/ 20-60x eye pc.? Or the Minox with ED glass, or the Leupold HD? I'm looking for something smaller, a little easier to carry than my Kowa 660. Most straight tube spotter's arn't all that great, but USO's stuff is very good as a rule. I can see .22 hole's @ 200+ yards with the Kowa, how about the USO ??