Performance, that's an interesting point. I'm quite happy mixing up my premium eyepieces with the el cheapo's coz they generally have a different purpose. My pan 27mm is exclusively used on my refractor as a general deep sky eyepiece while my superview is used on my short tube as a very low power wide field scanning eyepiece (instead of binoculars). I actually prefer simple 4 element plossl's to wide fields e/p's because of their better performance (as in light transmission and contrast). I am just starting double star viewing and for that disapline I demand pin sharp and 'trasty images. I don't have lower standards or that I am easily pleased It's just a matter of horses 4 courses
BTW the Panoptic eyepiece is my favorite e/p but a humble Meade 16mm plossl is my most used. Getting out under the stars is wot it's all about
