Ron, the addition of the target knobs certainly makes the sight more versatile - I just wish they made the 'quick release' that Lyman uses.

The knob on the side - did you make that or does that come with the 'target knob' kit?

I have as yet not converted to the target knobs on my MK's so I am still using the PBR method which works for me as I have capped myself at 150 yards for deer and 175 for elk.