I reckon there are not many 'dud' eyepieces around.
I've had GSO Plossl's and they were quite good, better in fact than a few bigger name, bigger dollar eyepieces. The only reason I don't still have them is that I had a serious cull and kept only the very best (and a few quirky ones).
Before i disposed of the GSO's, I got rid of most of the others, including several TMB's (very average) and a Seibert (total rubbish).
For the money they are hard to beat.
Cheers,
Jason.
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