[Empeg-technical] DarkStorm lens are quality???

[HansFranz at empegbbs-noreply.merlins.org]

i've bought a blue lens, 
but the eges aren't clear and didn' fit really in the front-panel 
look here: 
<a href="http://mitglied.lycos.de/bvcxcvbdfg/Filter.html" target="_blank">http://mitglied.lycos.de/bvcxcvbdfg/Filter.html</a> 

i thought it was made by an CNC router, why are the eges not clear???