Hi Brian!
The 20mm Nag T2 is one of the sharpest eyepieces I have ever looked through. This was in my 10" f/4.72 reflector WITHOUT a paracorr. Sharpness right to the edge, but 2.3 pounds of weight on your focuser. If your telescope can handle 2.3 pounds of weight, I would recommend getting one. I don't know if your weight there is measured in stones like Britain, so you would have to convert 2.3 pounds to stones!
Cheers,
Mark
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