EDIT: The defects are probably visible on 90% of the keycaps, yet the spacebar is quite nice actually.
Some pictures, not the best lightning nor post-processing(wide gamut screen keeps deleting its colour profile)
Old stock ABS filcos
Show Image
(http://i.imgur.com/w6TWn0s.jpg)
New thick white ducky
Show Image
(http://i.imgur.com/XcI61vP.jpg)
Now for the defects:
Show Image
(http://i.imgur.com/sQvk9Zx.jpg)
Show Image
(http://i.imgur.com/xOOCaio.jpg)
Show Image
(http://i.imgur.com/KlQLtFK.jpg)
Show Image
(http://i.imgur.com/TqdB9iz.jpg)
Wow, that's disappointing. Even my el-cheapo blank white PBTs from BangGood don't look anything like that. Thank you for sharing, I know to avoid Ducky PBT now!