Ian Ogilvie (stringscope) has kindly done a fantastic review of the University Optics Konig eyepieces (24, 16, & 12mm focal lengths) as well as the Klee 2.8x barlow, for the
IceInSpace Reviews page.
You can read his review here:
UO 24, 16 & 16mm Konig Eyepieces + 2.8x Klee Barlow
Thanks very much Ian for the great review. If anyone else would like to contribute a review for the site, please contact me.