I'm not so sure that a general classification of "best" or "king" applies when a shooter/hunter chooses between the TT or the ZCO. It certainly didn't for me. IMO, either brand scope displays a superior level of glass quality, mechanical precision, and build quality that is difficult to discern, and pretty much neutralizes these core attributes. As I found out when selecting between the two brands, each has a number of distinguishing features and formats that will be a major factor in an individuals preferenc for one or the other. Differences in reticle design, magnification range, elevation range, tactile feel of the turret and power ring, parallax control, weight, size, price, and even styling are variables, and will play a role in one's preference and selection. For my use, after looking into the sum of these aspects, my selection of the ZCO 420 became obvious for my particular use, and I'm elated with my decision. But it's not to say another shooter would have made the same choice for the same reasons.
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