Don't know if I can help much. My 10 mm Pentax XW is my favourite eyepiece, sharper than my TV 12mm T4. (They've had a lot of shoot outs.) Although I don't observe wearing glasses, I still appreciate the eye relief and the screw up eyecup. I think people will tell you that the 10, 7.5 and 5 mm Pentaxes are better than the 14 mm, but I haven't done the comparo. The 70 degree AFOV ought to be plenty fine enough in your scope, but obviously it would be nice if you had the chance to try them out beforehand.
Anyway, good luck.
Brian.
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